9 Fun Activities for Large Groups of Adults (2025 Guide)

Planning events for a large crowd can feel like herding cats. You're juggling schedules, trying to find something everyone will enjoy, and battling endless email chains. The goal is simple: create memorable, engaging experiences that bring people together. But the execution? It’s often a logistical nightmare. This guide cuts through the noise. We've compiled a list of genuinely fun activities for large groups of adults, from brain-teasing escape rooms to creative paint-and-sip parties.

More importantly, we'll show you how to streamline the entire planning process, so you can focus on the fun, not the follow-ups. Forget wrestling with spreadsheets and chasing RSVPs. We’ll demonstrate how to manage everything directly within your existing workflow. For themed adult group celebrations, you might find specific ideas tailored for occasions like bachelor parties, such as these things to add to your Las Vegas bachelor party itinerary.

This article provides actionable ideas and practical tips for executing them flawlessly. We'll explore how, for companies that run on Slack and Google Calendar, a specialized tool like Be There (https://be-there.co) can be incredibly handy. It allows you to create events in Slack that automatically sync with Google Calendar. This seamless integration simplifies invitations, tracks attendance, and keeps everyone informed without ever leaving your primary communication hub. Let's get started.

1. Escape Room Experience

An escape room is an immersive, interactive game where a team is “locked” in a themed room and must work together to solve a series of puzzles, find clues, and crack codes to complete a mission within a set time limit. It's one of the most engaging fun activities for large groups of adults because it requires sharp communication, problem-solving, and collaboration under pressure, making it a powerful team-building exercise.

While standard rooms often accommodate 6-12 people, scaling this for a large group is simple. Venues like The Escape Game or Breakout Games are designed to run multiple themed rooms simultaneously. Your group can be split into smaller teams to compete against each other for the best escape time, adding a thrilling competitive element to the cooperative puzzle-solving.

✦How to Organize an Escape Room Event

Organizing an escape room day for a large team requires careful coordination. First, gauge interest and find a time that works for everyone. For companies that use both Slack and Google Calendar, a tool like Be There (https://be-there.co) is invaluable. You can create the event directly in a Slack channel, allowing team members to RSVP instantly. Be There automatically checks Google Calendar availability across the team, eliminating the back-and-forth of finding a suitable date and ensuring the event syncs to everyone’s calendar once confirmed.

Actionable Tips for Success:

• Book in Parallel: For groups larger than 12, reserve several rooms at the same time. Ask the venue if they offer competitive scoring between the rooms.
• Mix Skill Levels: When splitting your group into teams, create a diverse mix of analytical thinkers, creative problem-solvers, and detail-oriented observers.
• Plan a Debrief: Schedule time afterward for teams to share their experiences. This is where the real bonding happens as they recount their successes and funny mishaps.
• Consider Mobile Options: If you have a very large group or want to stay on-site, mobile escape room companies can bring the entire experience to your office or event venue.

2. Scavenger Hunt

A scavenger hunt is an interactive adventure game where large groups split into smaller teams to find items, complete challenges, or solve clues within a designated area. It's one of the most dynamic fun activities for large groups of adults because it encourages teamwork, strategic thinking, and a bit of friendly competition while getting everyone moving and exploring their surroundings.

Modern scavenger hunts are easily scalable and can be customized for any location, from a city district to an office building or a conference center. Apps like GooseChase or Actionbound allow you to create tech-driven experiences with GPS check-ins, photo challenges, and live leaderboards, making it simple to manage multiple teams simultaneously. This format is perfect for corporate retreats, conference engagement, or even large social gatherings.

✦How to Organize a Scavenger Hunt

Coordinating a scavenger hunt for a large group starts with clear communication and easy scheduling. To kick things off, you need to set a date and get RSVPs. This is where a tool like Be There (https://be-there.co) is a game-changer for companies using Slack and Google Calendar. You can create the event announcement in Slack, where participants can RSVP with a click. Be There syncs with Google Calendar, ensuring everyone has the details locked in their schedules without any manual effort from the organizer.

Actionable Tips for Success:

• Use an App: Leverage platforms like GooseChase to manage teams, track progress in real-time, and automate scoring. This eliminates logistical headaches.
• Incorporate Photo/Video Challenges: Ask teams to take creative photos or record short videos completing tasks. This creates fantastic, shareable content for post-event engagement.
• Set Clear Boundaries: Define the physical play area and set a firm time limit. Ensure all safety guidelines are clearly communicated before the hunt begins.
• Mix Up the Clues: Combine physical location-based puzzles with online riddles or trivia questions to keep the challenges diverse and engaging for different skill sets.

3. Paint and Sip Party

A paint and sip party is a relaxed, creative social event where participants follow a step-by-step painting tutorial led by an instructor while enjoying drinks and conversation. No artistic skill is required, making it one of the most accessible and fun activities for large groups of adults. It combines a low-pressure creative outlet with a casual social atmosphere, allowing team members to unwind, connect, and leave with a tangible memento of their shared experience.

This activity scales effortlessly for large groups. Popular studios like Painting with a Twist or Pinot's Palette offer private party bookings for entire venues. Alternatively, many provide mobile services, bringing all the canvases, paints, and instructors directly to your office or chosen event space. This flexibility makes it an excellent choice for corporate team-building, client appreciation events, or celebratory gatherings.

✦How to Organize a Paint and Sip Party

Coordinating a creative event like this for a large group requires seamless planning. The first step is confirming attendance and finding a date that works for everyone. For companies using both Slack and Google Calendar, Be There (https://be-there.co) simplifies everything. You create the event in Slack, and team members can RSVP with a single click. Be There syncs with Google Calendar, checking everyone's availability to help you quickly find the perfect time slot without endless email chains.

Actionable Tips for Success:

• Book a Private Event: For groups larger than 20, booking a private studio or a mobile instructor ensures your group gets dedicated attention and space.
• Choose a Simple Design: Opt for a painting with broad appeal and a manageable difficulty level to ensure everyone feels successful and has fun, regardless of their artistic background.
• Plan for Logistics: Confirm if the venue is BYOB or offers a bar. Arrange for catering or snacks to keep the social atmosphere flowing.
• Capture the Moment: Take photos throughout the process, from the first brushstroke to the final group shot with everyone's finished artwork.

4. Trivia Night Competition

A trivia night is a classic knowledge-based competition where teams battle it out by answering questions across various categories like pop culture, history, science, and more. It’s one of the most adaptable fun activities for large groups of adults because it scales effortlessly for any crowd size and encourages friendly rivalry, making it perfect for corporate parties, fundraisers, or large social gatherings.

While pub quizzes are popular, a large-scale trivia event takes it to the next level. Professional hosts from companies like Geeks Who Drink or Bar None Games can manage the entire event with sound systems, visual presentations, and real-time scoring. This turns a simple quiz into an exciting game show experience, ideal for keeping dozens or even hundreds of participants engaged.

✦How to Organize a Trivia Night Competition

The key to a successful trivia night is seamless organization, starting with finding the right date. To coordinate a large group in a company that relies on Slack and Google Calendar, a tool like Be There (https://be-there.co) is incredibly handy. You can create the event, poll for preferred trivia categories, and gather RSVPs directly in Slack. The integration ensures the event details are automatically added to attendees' Google Calendars, ensuring maximum participation with minimal hassle.

Actionable Tips for Success:

• Hire a Professional: A dedicated trivia company will handle question creation, hosting, and scoring, allowing you to participate and enjoy the event.
• Balance the Questions: Mix easy, moderate, and challenging questions to ensure all teams feel involved and have a chance to score points.
• Include Multimedia Rounds: Add variety with audio clips (name that tune) and visual rounds (identify the movie poster) to engage different types of thinkers.
• Offer Creative Prizes: Reward not just the winning team but also the team with the "Best Team Name" or the "Most Spirited" group to keep everyone motivated. Looking for more inspiration? You can find additional company fun event ideas to enhance your next gathering.

5. Outdoor Adventure Course

An outdoor adventure course is a physical challenge experience featuring obstacle courses, zip lines, and team-building elements designed for large group participation. These guided activities are fantastic fun activities for large groups of adults because they push participants out of their comfort zones, fostering trust, communication, and resilience in a dynamic and exhilarating setting.

Venues like Go Ape or local challenge centers are well-equipped to handle large corporate retreats or team events. They can run multiple groups through different parts of the course simultaneously or design a sequence of challenges that the entire group completes together. This setup encourages both small-group collaboration and a larger sense of shared accomplishment.

✦How to Organize an Outdoor Adventure Course Event

Coordinating an off-site physical activity requires clear communication about logistics and expectations. First, you need to confirm availability and find a date that works for everyone. For companies that use both Slack and Google Calendar, a tool like Be There (https://be-there.co) is a huge help. You can create the event in Slack, allowing attendees to RSVP with a click while the app cross-references their Google Calendars to prevent scheduling conflicts, making it easy to find the perfect day.

Actionable Tips for Success:

• Assess Fitness Levels: Before booking, discreetly survey your group to understand their physical comfort and fitness levels to choose an appropriate course.
• Prioritize Safety: Book with reputable companies that have certified instructors and a strong safety record. Don't hesitate to ask about their credentials and procedures.
• Communicate Clearly: Provide detailed information on what to wear, what to bring (water, sunscreen), and what to expect. This helps everyone feel prepared.
• Plan a Debrief: After the activities, hold a reflection session. Discussing challenges overcome and lessons learned solidifies the team-building benefits. For more ideas on structuring these events, explore these other team building event ideas.

6. Cooking Class Competition

A cooking class competition turns a standard culinary lesson into a dynamic, hands-on challenge inspired by popular cooking shows. Teams collaborate to create a delicious dish under the guidance of professional chefs, competing on taste, creativity, and presentation. It’s one of the most memorable fun activities for large groups of adults because it combines skill-building with friendly competition, encouraging communication and teamwork in a high-energy environment.

This activity is easily scalable for large corporate groups. Venues like Sur La Table or local culinary institutes often have multiple cooking stations and can host simultaneous competitions. Your entire group can be divided into smaller teams, each tackling the same recipe. A final judging ceremony adds a fun, climactic finish where winning teams are awarded prizes.

✦How to Organize a Cooking Class Competition

Organizing a culinary event requires gathering crucial information upfront, especially regarding dietary needs. Before booking, you need to know who can attend and if they have any restrictions. For companies using both Slack and Google Calendar, Be There (https://be-there.co) streamlines the entire process. You can create the event in Slack and include a quick poll about allergies. As team members RSVP, Be There cross-references their Google Calendars for availability, ensuring you have an accurate headcount and all dietary information in one place.

Actionable Tips for Success:

• Handle Dietary Needs Early: Survey participants for allergies and dietary restrictions when you send the initial invite. This gives the venue ample time to prepare.
• Choose the Right Venue: Select a location with enough individual or team-based cooking stations to accommodate everyone comfortably.
• Set the Right Skill Level: Pick recipes that are challenging enough to be engaging but not so complex that they frustrate beginners.
• Foster a Fun Atmosphere: Provide branded aprons for a professional touch and plan for appetizers and drinks to keep the energy high while teams are cooking.

7. Game Show Experience

A Game Show Experience brings the high-energy, competitive fun of classic TV shows directly to your event. Hosted by professional entertainers, these events adapt formats like Family Feud, Jeopardy, or Wheel of Fortune for large groups. Teams compete in rounds of trivia, physical challenges, and interactive games using authentic buzzers, music, and prize structures. This is one of the most dynamic fun activities for large groups of adults because it encourages friendly rivalry and spirited collaboration.

This activity scales perfectly for large crowds, as professional companies like Game Show Guys can handle hundreds of participants at once. The group is divided into teams that go head-to-head, creating a lively atmosphere that keeps everyone engaged. The spectacle of a live game show makes it an unforgettable centerpiece for corporate events, conferences, or even large social gatherings.

✦How to Organize a Game Show Event

Coordinating a game show requires booking a professional company and confirming a date that suits everyone. This is where planning in Slack with Be There (https://be-there.co) is particularly useful for companies that use Google Calendar. You can create the event, poll your team for their preferred game show format, and manage RSVPs all in one place. Its Google Calendar integration helps you instantly find a time slot that avoids scheduling conflicts for the entire group and automatically sends the invites.

Actionable Tips for Success:

• Customize the Content: Work with the entertainment company to prepare custom questions relevant to your company culture, industry, or the event's theme.
• Choose Inclusive Formats: Select games that allow for maximum participation, ensuring that people who aren't trivia experts can still contribute and have fun.
• Plan for Prizes: Offer a mix of prizes, from bragging rights and a team trophy to gift cards or company swag, to motivate teams and celebrate the winners.
• Consider Virtual Options: Many game show companies now offer fully virtual or hybrid versions, perfect for connecting distributed teams. Discover more ideas for your remote team in our guide to virtual office parties.

8. Murder Mystery Dinner

A murder mystery dinner is an immersive, theatrical dining experience where your group becomes part of the show. Each guest receives a character to play, complete with a backstory and objectives. As you enjoy a meal, professional actors guide the storyline, revealing clues and plot twists that lead your team to collaboratively solve a whodunnit. It's one of the most interactive fun activities for large groups of adults, blending dining, entertainment, and collaborative problem-solving into one memorable evening.

This activity is exceptionally scalable for large corporate events, milestone celebrations, or holiday parties. Companies like The Murder Mystery Co. specialize in hosting events for hundreds of guests, ensuring that everyone feels involved. The shared goal of solving the crime encourages mingling and communication among colleagues who might not normally interact, breaking down departmental silos in a highly entertaining way.

✦How to Organize a Murder Mystery Dinner

Organizing a murder mystery event requires sending out detailed information ahead of time. You’ll need to coordinate character assignments and venue details, which can be complex for a large group. For companies using both Slack and Google Calendar, Be There (https://be-there.co) simplifies this process. You can create the event in Slack and attach all necessary documents, like character bios. Be There handles the RSVPs and checks everyone’s Google Calendar, ensuring you can confirm your headcount with the venue without endless email chains.

Actionable Tips for Success:

• Distribute Roles in Advance: Send character descriptions and costume suggestions a week or two before the event. This builds anticipation and allows everyone to prepare.
• Choose an Atmospheric Venue: Select a location with a layout and ambiance that matches your mystery’s theme, whether it's a 1920s speakeasy or a classic manor.
• Provide Name Tags: Create name tags with both the employee's name and their character's name to help everyone keep track of who’s who.
• Plan for Photos: Designate a time before the mystery begins for a group photo session. Everyone will love having a picture of their team in full costume.

9. Karaoke Tournament

A karaoke tournament elevates the classic sing-along into a structured, competitive event, perfect for unleashing creativity and friendly rivalry. Participants perform songs individually or in teams, often competing in themed rounds with scoring to determine a winner. It’s one of the most spirited fun activities for large groups of adults because it encourages people to step out of their comfort zones, cheer for their colleagues, and bond over shared musical nostalgia.

Modern karaoke venues like Lucky Strike or local private-room concepts are designed for large corporate parties. They offer extensive song libraries, professional sound systems, and private spaces, ensuring everyone from the shy singer to the aspiring rock star feels comfortable. The tournament format adds an exciting layer, turning a simple night out into a memorable team championship.

✦How to Organize a Karaoke Tournament Event

Coordinating a karaoke night for a large group requires managing song lists, performance schedules, and venue details. To start, you need to find a date that works for everyone. For companies that rely on both Slack and Google Calendar, a tool like Be There (https://be-there.co) is a huge time-saver. You can create the event in Slack and send out a poll with potential dates. Be There checks everyone's Google Calendar availability, so you can quickly find the best time without endless email chains and ensure the final event is automatically on everyone's calendar.

Actionable Tips for Success:

• Book Private Rooms: Reserve one or more private karaoke rooms to give your group a dedicated space, control the sound, and create a more intimate and less intimidating atmosphere.
• Encourage Team Performances: Promote duets and group songs to get less confident participants involved. This fosters collaboration and takes the pressure off solo performances.
• Create a Sign-Up Sheet: Manage the performance order and prevent chaos by having a clear sign-up list. You can share this in a Slack channel ahead of the event.
• Offer Fun Prizes: Reward participants with prizes for categories like "Best Vocal Performance," "Most Energetic Act," or "Crowd Favorite" to keep the energy high and inclusive.

Top 9 Fun Group Activities Comparison

Activity	Implementation Complexity 🔄	Resource Requirements ⚡	Expected Outcomes 📊	Ideal Use Cases 💡	Key Advantages ⭐
Escape Room Experience	Moderate 🔄🔄	Moderate (multiple rooms, staff) ⚡⚡	Strong teamwork, communication, fun 📊📊	Groups 15-40, puzzle lovers, indoor events 💡	Immersive, scalable, no special skills ⭐⭐
Scavenger Hunt	High 🔄🔄🔄	Low to moderate (apps, planning) ⚡⚡	Exploration, creativity, friendly competition 📊📊	Groups 20-100+, outdoor/urban exploration 💡	Highly scalable, low cost, customizable ⭐⭐
Paint and Sip Party	Low to moderate 🔄🔄	Moderate (art supplies, instructor) ⚡	Relaxation, creativity, social bonding 📊	Groups 15-50, creative social events 💡	No art skills needed, personal keepsake ⭐⭐
Trivia Night Competition	Moderate 🔄🔄	Low to moderate (host, AV system) ⚡	Intellectual challenge, team competition 📊	Groups 30-150, knowledge-based fun 💡	Scalable, inexpensive, diverse interests ⭐⭐
Outdoor Adventure Course	High 🔄🔄🔄	High (equipment, safety staff) ⚡⚡⚡	Physical fitness, trust, leadership growth 📊	Groups 20-60, active outdoors enthusiasts 💡	Builds trust, physical exercise, bonding ⭐⭐
Cooking Class Competition	High 🔄🔄🔄	High (kitchen, chef, ingredients) ⚡⚡⚡	Practical skills, collaboration, dining 📊	Groups 15-40, food lovers, hands-on learning 💡	Skill development, dietary options, fun ⭐⭐
Game Show Experience	High 🔄🔄🔄	High (professional hosts, equipment) ⚡⚡⚡	High energy, engagement, nostalgia 📊	Groups 40-200, variety of challenges 💡	Interactive, professional production, fun ⭐⭐
Murder Mystery Dinner	High 🔄🔄🔄	High (actors, catering) ⚡⚡⚡	Immersive storytelling, creativity 📊	Groups 20-80, theater & dining fans 💡	Combines dining & theater, memorable ⭐⭐
Karaoke Tournament	Moderate 🔄🔄	Moderate (sound system, song library) ⚡⚡	Confidence building, entertainment 📊	Groups 25-100, music lovers, performance 💡	Wide appeal, confidence boost, entertaining ⭐⭐

Seamless Planning: Your Secret Weapon for Great Events

We've explored a fantastic range of engaging and memorable experiences, from the collaborative puzzle-solving of an Escape Room to the creative chaos of a Paint and Sip party. Each idea, whether it’s a high-energy Karaoke Tournament or a cerebral Murder Mystery Dinner, offers a unique way to bring people together. The key takeaway is that the best fun activities for large groups of adults are those that encourage interaction, spark friendly competition, and create lasting shared memories.

However, the greatest idea in the world can fall flat if the execution is clumsy. The real difference between a good event and a great one often comes down to logistics. Smooth, stress-free planning is not just a convenience; it's the foundation upon which a successful group event is built. When attendees receive clear communication, easy-to-manage invitations, and timely reminders, they can focus on what truly matters: connecting with their colleagues and having a genuinely good time.

✦From Idea to Flawless Execution

The transition from a brilliant concept to a well-attended, perfectly organized event is where many planners get stuck. Juggling RSVPs in chaotic email or Slack threads, manually adding attendees to calendar invites, and sending out last-minute reminders can quickly drain your enthusiasm and resources. This is precisely why integrating a dedicated planning tool into your workflow is a game-changer, especially for companies that already rely on both Slack and Google Calendar for daily operations.

By automating these administrative burdens, you reclaim valuable time and mental energy. Instead of chasing down responses, you can focus on the creative elements that elevate an event, such as personalizing the trivia questions or arranging for special prizes. Centralizing event details ensures everyone has access to the same information, eliminating confusion about dates, times, locations, or dress codes. To ensure your event runs smoothly and efficiently, explore these expert tips for planning group travel, which offer valuable insights that can be applied to any large-scale gathering.

✦The Power of Integrated Event Management

Imagine this streamlined process: you create a beautiful, detailed event post directly within Slack. With a single click, team members can RSVP, and their response automatically syncs with their Google Calendar, blocking out the time and preventing scheduling conflicts. Automated reminders go out without you lifting a finger, ensuring maximum attendance. For companies that live in Slack and Google Calendar, this level of integration is the secret to making fun activities for large groups of adults not just possible, but effortlessly successful.

It transforms event management from a tedious chore into a simple, effective process. When planning is this seamless, you're empowered to organize more frequent and more ambitious events, fostering a vibrant and connected company culture. The ultimate goal is to make participation easy and enjoyable from the very first announcement to the final thank-you note.

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Ready to eliminate the logistical headaches and focus on creating amazing experiences? Discover how Be There can transform your event planning directly within Slack, syncing seamlessly with Google Calendar to make organizing your next group activity simple and stress-free. Try Be There today and see how easy flawless event management can be.