Auckland 21st birthday ideas

10 of the best and funest 21st birthday theme ideas for you!

You’re 21st is a huge milestone where you say so long to your childhood and hello to adolescence. It’s a time for you to shine and for your family to feel pride in all you have achieved in your life so far.

For most, it is an occasion that warrants plenty of planning – especially if you’re trying to outdo your friends during the 21st birthday season. Whether you’re the first in your group of friends to hit this momentous milestone, or the last, we understand that your special day needs to be one that is remembered. That’s why at Ocean Groove Cruises, we’ve out together a list of 10 fantastic 21st birthday themes to get you thinking. Afterall, we do specialise in 21st Birthday Cruises in Auckland so we certainly know a thing or two about planning them!


They say a picture is worth a thousand words and we think the one above speaks for itself. Think rose gold, pinks, florals, and fawns.

This theme is great for creating the ultimate pink paradise.


Celebrating your 21st birthday in Auckland is the perfect opportunity to show off the fancy side of things with a black-tie shindig. Women get the opportunity to throw on a stunning gown, while the men can show off their inner 007 with black suits and ties.


Think black and gold, cigars, art deco, feathers, and tiaras. Put it all together and you have yourself a fantastic looking Gatsby inspired bash. This theme has gained a lot of interest since Leonardo brought the iconic novel to life in the 2013 movie. The roaring 20’s as they were known offered plenty of jazz, dancing, and campaign. What else would you want for your 21st?


A theme that is seemingly increasing in popularity, is the American derived all white party. With the clue being in the name, this theme involves party goers dressing only in all or almost all white clothing. The exception, on occasion, being that the party celebrant wears an alternative colour. Think a bride-to-be wearing all pink, while her maids of honour wear white. Or a Bachelor wearing all black as his fellow bucks wear only white. The idea being that they are the ones being celebrated and so need to stand out.

Especially popular in the summertime, all white parties don’t only focus on clothing. Think white balloons, white flowers, white decorations, and even white party food. Think beautifully decorated white chocolate cupcakes, crisp meringue kisses, white bread finger sandwiches, and plenty of marshmallows. The possibilities and endless when you put your mind to it.


It’s your birthday so why not make it even more about you by choosing a letter theme. Not sure what it is? Let us explain. A letter theme party is based on the first letter of your name. For instance, an ‘A’ theme for Amy’s birthday or an ‘R’ theme for Robyn. Next, you ask your guests to dress up as anything (a world of endless possibilities) beginning with that letter. Sounds fun right?

For an ‘A’ theme imagine Angles, Avocado’s, Astronauts, Alice in wonderland. This theme is only limited by the imagination of your guests. So, give them a challenge and let’s have some fun!


It’s been done many times before, but that doesn’t make it any less fun.

Pick your favourite festival: Coachella, Rhythm & Vines, Home Grown or Big Day Out or combine elements of a few. Insert some neon, music, glow sticks, fanny packs, gum boots and the free spirit nature of festivals and your 21st birthday will be an experience like no other.


Imagine the glitz and glam of the Las Vegas strip with the excitement and laughter of the casino. All with no risk of losing any money. Sounds like fun, right? Well, that is exactly what a corporate casino theme can offer. Whether you want black tie, 20s Gatsby or a wild western evening, a casino theme offers a fantastic evening of gambling – with play money of course. For some, they choose to create their own games, but others opt to select a casino hire companies, that can offer blackjack tables, Roulette, Baccarat, Poker, and much more.


It’s no surprise, that we have hosted a pirate themed party or two. After all, Ocean Groove Cruises are Auckland’s leading party boat provider and who could imagine a better location for a pirate themed party than onboard a private charter boat?

Inspired by the likes of eccentric pirate “Captain” Jack Sparrow and loveable Long John Silver, the pirate party theme offers adventure, fun and excitement. From eye patches and swords to bandana’s and corsets, the costume possibilities are both endless and easy to find. In addition, sites like pinterest are great for finding party food idea’s like pirate ship hot dogs and cannon chocolate balls.


If you have an affinity for the weird and wacky, then treat your guests to a mystical, mind-blowing Alice in Wonderland Mad Hatters Tea Party. Think quirky cocktails and canapes served in dishes and cups of all sizes and colours. At Ocean Groove Cruises, our seating area is ideal for a sit down tea party before you move to the upper deck for an evening of dancing!


A mysterious Masquerade party is an other great option for celebrating a milestone as large as a 21st birthday. Each of your guests will attend while wearing a mask – adding a little fantasy to the evening.

So if you’re looking to celebrate your 21st birthday in Auckland in style, look no further than Ocean Groove Cruises. Get in touch with our friendly team today to arrange a free charter viewing or to dicuss your ideas!

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