From a boozy bar crawl with your best mates to booking a spontaneous solo trip, there are hundreds of ways to celebrate turning the big two-one. But with so many options out there, and only one special day (unless you’re going all out with a birthday week of course) it can be difficult to settle on a plan.
So, whether you’re organising your own epic 21st or hosting for a friend, we’ve rounded up a bunch of 21st birthday ideas to help you mark the occasion.
But before we dive in, here’s a sneak peek at our wonderful 21st birthday cards. Lovingly designed by our talented independent illustrators, we’re sure you’ll be impressed:
And if you need help writing something meaningful inside, our guide on what to write in a 21st birthday card is full of options.
Why is 21 a special birthday?
Your 21st typically comes with new freedoms, responsibilities, and let’s be honest, a great excuse to throw a huge party. Whether you’re wrapping up uni, starting your career, or moving into your own place, it’s a big year for lots of reasons.
It’s also one of those birthdays where you can really make it your own, whether that’s planning a road trip with your mates or just taking some time to reflect on how far you’ve come.
21st birthday party ideas
If you’re eager to go all out, you’ll need to pop on your party planning hat and start brainstorming some 21st birthday party ideas.
1. Throw a themed bash
A theme instantly elevates any party, giving guests an excuse to let their hair down and dress to the nines. With this in mind, here are some 21st birthday themes that’ll make for a memorable night:
- Y2K revival: Born in the early 2000s? It’s only right you throw an epic Y2K celebration then. We’re thinking low rise jeans, flip phones, and all the necessary throwback tunes.
- Roaring 20s: Love the idea of flapper dresses, feathers, and jazz? Kick off the second year of your 20s in style with a roaring 20s themed bash.
- Festival fun: If your 21st is in the summer, a festival-themed birthday party is bound to be a hit. Go all out and hire a band and food truck, or host at home by making a killer playlist and setting up a DIY drinks bar.
2. Host a dinner party
If you love the idea of a party but not so much the dancing, a dinner party is a great alternative. You can go full MasterChef and cook up a storm or ask everyone to bring a dish for a unique feast.
Light some candles, set the tone with music, then spend the evening indulging in delicious food with your favourite people.
Laid-back ideas for a 21st birthday
Not keen on the idea of rolling in at 4am then spending the next day paying for it? Here are some low-key ideas for a 21st birthday (that are a little more budget friendly too):
1. Picnic in the park
Looking for 21st birthday ideas for girls? If the sun’s shining, grab your closest friends and head to the park for a picnic! Forget soggy sandwiches, we’re thinking more along the lines of gingham blankets, delicious baked goods, and a few bottles of fizz. Sounds like the perfect way to spend the day if you ask us.
2. Movie marathon
If you’re searching for a super chilled way to celebrate, just pick a movie, microwave some popcorn, and turn your living room into an at-home cinema. You can throw it back with some nostalgic classics, or press play on that new film you’ve all been waiting to watch.
And if you’re after something similarly cozy, a games night can be just as fun. We’ve got a full guide on how to host a games night which is filled with food, drink, and game inspo.
Adventurous things to do for a 21st birthday
Deciding what to do on your birthday can be tricky, especially when it comes to milestones like 21sts. But don’t worry, as we’ve pulled together some ideas for fun and adventurous ways to celebrate:
1. Travel somewhere new
Ticking somewhere off your travel bucket list is the perfect way to celebrate turning 21. Whether you soak up the sun in Lisbon or wander Florence’s cobblestone streets, you’ll be able to make it a birthday to remember.
Looking for solo birthday ideas? Even better. Just hop on a flight to Rome then indulge in as much pasta and gelato as you please.
2. Plan a camping trip
If you love the great outdoors, why not take your 21st off grid? Pack up the tent, gather your other half or pals, then head to your favourite camping spot for a weekend of fun. Whether it’s rustic camping or a more luxe glamping setup, it’s the perfect way to celebrate with those closest to you.
Unique ideas for a 21st birthday
If you’re hoping to make it feel super meaningful, here are some unique things to do for a 21st birthday:
1. Write yourself a letter
While this one might feel a bit strange at first, we love the idea of sitting down after a long day of celebrating and writing a letter to your future self.
Whether you reflect on the past year or scribble down a few hopes for the future, all it takes is a couple of minutes of contemplation. Just write, seal it up, and there you have it: your very own personal pep talk ready to be opened on your 22nd. Who knows, this might even become a little birthday tradition.
2. Push yourself out of your comfort zone
Always wanted to try a dance class? Go rock climbing? Or sing a karaoke solo? There’s no time like your 21st to push yourself out of your comfort zone. Just pick an activity or experience you’ve been meaning to try, then get it booked in the diary.
Feeling inspired by our 21st birthday ideas? Brill, all that’s left to do now is pick your favourite and get planning! Oh, and one final thing, remember your 21st is all about you. So, head out with your mates ‘till sunrise or have a chilled evening in, there’s no right or wrong way to celebrate. Have fun, and a huge happy birthday from us here at thortful!
If you’re looking for some extra insights, just head over to the thortful blog. There you can dive into guides on how to celebrate a birthday at work as well as sweet 16 party ideas!
