20 Best Indoor Birthday Ideas for Adults

indoor birthday ideas for adults

Are you trying to plan an amazing birthday for a close friend or family member? Here’s a list of the 20 best unique indoor birthday ideas for adults, how much they cost and how long they last! If you’re planning a party, don’t forget to check out our ultimate party planning checklist and 20 best theme ideas for adult parties!

Drink Tasting and Masterclasses

Drink tasting and masterclasses are a great indoor birthday idea for adults. If you know someone who is into cocktails, there are loads of cool bars that offer cocktail masterclasses so they can learn how to make their favourite cocktails. Gin is very popular at the moment, so why not book a gin tasting session for someone’s birthday? Or if they’re into craft ale and love a fine wine, there are plenty of tasting sessions out there to choose from. 

How much does it cost? From £25 per person 

How long does it last? 1-2 hours

Spa Day

Spa treatments are the ultimate indulgence that you can treat someone to for their birthday. If a party sounds too stressful and too much work, a spa day is a perfect alternative. You can book a full day or relaxation or even a weekend trip, or just a treatment if you’re looking for a cheaper option. There are loads of options available so you’re sure to find a spa that’s local and suits your budget. It’s a birthday idea that’ll definitely be appreciated by someone with a hectic lifestyle! 

How much does it cost? From a couple of hours up to a full weekend 

How long does it last? From £50 to £300 depending on the package 

Escape Room

Escape rooms have become a really popular indoor adult birthday idea over the last year or so. If you’d like to celebrate a birthday with a small group of friends, it’s a great option to consider. There are loads of escape rooms in major cities and quite a few dotted around smaller towns so you’ll have no trouble finding one. They’re not very expensive either and don’t last too long. This means it’s a great activity to do as a last minute birthday idea. 

How much does it cost? Approximately £10 per person

How long does it last? Around an hour 

Fine Dining

If you’re planning a birthday for a food lover, you can’t get much better than a fine dining experience. It’s a classic is that’s popular for a reason. You can choose from a variety of restaurants in major city centres to experience a night of life changing food! It might sound expensive, but there are actually a lot of great vouchers and deals out there so it doesn’t have to break the bank! 

How much does it cost? £50-200 for two people

How long does it last? Approximately 2 hours 

indoor birthday ideas for adults

Theatre Tickets

Treating someone to some musical or theatre tickets is a great birthday gift experience. It’s a really thoughtful idea that will definitely be appreciated by any drama enthusiast. You can book tickets to see a show locally or go all out and book a West End performance to really make it a special birthday. Why not make a day of it and explore London whilst you’re there to! 

How much does it cost? £20-80 per person 

How long does it last? 2-3 hours 

Indoor Sky Diving

This is the perfect indoor birthday idea for any adrenaline junkie! Indoor sky diving experiences are definitely becoming more popular and there are plenty of places offering it. It’s a good idea for someone who loves the thought of sky diving but isn’t quite ready to take the plunge properly yet! There are different session lengths available at most places so you can choose an option to suit your budget. 

How much does it cost? £25-75 per person 

How long will it last? Around 2 hours depending on the package

Diving with Sharks

This is an amazing idea for someone who loves a bit of danger! Although it’s underwater, it’s still an indoor birthday idea that’s perfect for adults looking to do something a bit different. Plenty of aquariums offer this gift experience too so you should be able to find one not too far away quite easily.

How much does it cost? Around £250

How long does it last? A couple of hours 

indoor birthday ideas for adults

Dance Classes

This is a unique indoor adult birthday idea that’s perfect for any Strictly Come Dancing fan! Book a session in with a professional dancer to learn some new moves and have a great time! You can choose from a range of dance styles. From hiphop to ballroom, there’s a class for everyone. It’s also a good one to enjoy in with friends as there’s the option to book a group dance class session too! 

How much does it cost? Roughly £25 per person 

How long does it last? 1-2 hours 

Indoor Skiing

Want to hit the slopes without having to book an expensive trip abroad? Then you should book an indoor skiing day! It’s an amazing idea for an indoor winter birthday idea. You can book a long session and make a day or it, or go for a couple of hours for a cheaper option. There are packages to suit both the seasoned skiing pro or a complete beginner! It’s can be great new experience that’s perfect for someone’s birthday.

How much does it cost? Starts from £25 per person 

How long does it last? From an hour upwards

Afternoon Tea

This is a great casual indoor birthday idea for adults. It doesn’t last very long so can be great as part of someone’s birthday schedule. You’ll find plenty of afternoon tea gift experiences online in your local area so it’s a good last minute idea too! It’s a classy birthday idea that’s great for groups but doesn’t cost too much either. 

How much does it cost? Roughly £30-50 for two people

How long does it last? A couple of hours 

Indoor Go Karting

Go Karting is a great adult birthday idea that can be enjoyed indoors or outdoors! So no matter the weather, you’re sure to have a great time! It’s a really fun activity for small groups of friends. The competitive edge to this activity is what makes it especically great. It’s becoming more and more popular so there are plenty of indoor go karting tracks around which means you’ll have no trouble planning this idea.

How much does it cost? From £20 per person

How long does it last? Anywhere from 30 minutes to around 2 hours 

indoor birthday party ideas for kids

Chocolate Making

This is the perfect indoor birthday idea for any chocolate lover! Spend a few hours having a go at making you’re  favourite treats, and when you’re all done, you get to take it all home with you! What could be better than that! It’s a pretty cheap idea too, so you don’t have to break the bank to have a great birthday.

How much does it cost? £50-100 for two people

How long does it last? 2-3 hours 

Concert

Going to a concert is one of the best indoor birthday ideas for adults. It’s a really thoughtful gift idea but very easy to organise as you barely have to do any actual planning! Just purchase the tickets online and figure out how to get there! It’s a great way to give someone an unforgettable birthday watching their favourite artist on stage.

How much does it cost? Depends who you’re seeing! Anywhere from £20-300.

How long does it last? A few hours 

Cooking Classes

Cooking classes are another really easy to plan indoor birthday idea for adults. Lots of restaurants offer masterclasses sharing their secrets to making amazing food at home. If you often leave a restaurant wondering just how they make their food taste so good, this is a great activity to try. It’s also a really nice birthday idea for couples to spend time together.

How much does it cost? £50-100 for two people

How long does it last? 2-3 hours

Casino Night

Organising a casino night is a really fun way to celebrate a birthday with your friends. You can host an at home casino party, with decorations, drinks and games that transport your guests to Vegas. Or you can go to an actual casino instead! Just remember to always gamble responsibly and have fun. 

How much does it cost? Depends how good you are at betting!

How long does it last? The whole night 

Roller Disco

Go for a classic retro vibe for your indoor birthday party and head to a roller disco! It’s great for complete beginners to try something new, or roller skating masters to show of their skills. It’s a really fun indoor birthday activity idea to try with friends and get everyone involved in something a bit different!

How much does it cost? £15-25 per person

How long does it last? 2 hours 

indoor birthday ideas for adults

Karaoke Party

Karaoke parties are an amazing way to have a great time with your friends and family on your birthday. You can host this one at home or in a party venue. All you need is some speakers, a microphone, TV and a karaoke machine and you’re good to go. You can always tie karaoke into a party theme you’ve already got for some fun and inexpensive entertainment that always goes down well with guests!

How much does it cost? Very cheap if you’re hosting at home, the cost depends mainly on your venue.

How long will it last? All night!

Murder Mystery Night

Murder mystery nights have become a really popular adult birthday party idea over the past couple of years. You can incorporate a theme into the murder mystery as well for an added touch. It’s a great way to have fun with a large group of friends on your birthday. It just takes a little bit of planning but it’s well worth it!

How much does it cost? If you’re hosting yourself, it can be really cheap!

How long does it last? A few hours

Comedy Show

If you’re looking for a laugh on your birthday, there’s no better way than with a comedy show. If you want to give someone a great birthday present, buy them tickets to see their favourite comedian. It’ll give them a night that they’re guaranteed to enjoy and is a really thoughtful birthday idea! You’ll just need a bit of time to book the tickets in advance so it’s a good one if you’re organised and thinking ahead. 

How much does it cost? £25+ per person

How long does it last? A couple of hours 

Behind the Scenes Studio Tour

One of the best indoor birthday ideas for adults is a behind the scenes tour at their favourite movie or TV show studio! These are the perfect idea for film fanatics and there’s lots of options available. If you’re planning a birthday for a soap fan, why not book them a tour of the Emmerdale or Coronation Street Studio. Or give them the experience of the Downton Abbey grounds if they are into period dramas. And if you’re planning for a Harry Potter fan, there’s no better birthday idea than a trip to the Harry Potter Studio in London!

How much does it cost? Most studio tours are from £25-40

How long does it last? 2-3 hours 

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