Life Is the Bubbles With These Mermaid Bachelorette Party Ideas

Wish you could be part of that world? Here's some fin-tastic inspo.
Mermaid bachelorette party decoration and invitation ideas
Photos, From Left to Right: ShopEverthineDesigns, karleyhilldesign
Ariel Taranski
Ariel Taranski
Ariel Taranski
Ariel Taranski
The Knot Contributor
  • Ariel writes on a variety of wedding-related topics for The Knot.
  • She has previously worked for Southern Bride Magazine, Miss Design Berry and other woman-owned wedding brands.
  • She received her Bachelor of Arts in English from the University of Memphis.
Updated Aug 16, 2023
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With the release of the live-action "The Little Mermaid," it's got us in the mood for everything under the sea. And what better way to shell-abrate than with a mermaid bachelorette party? There are so many fun bach themes to choose from, but if you ever played mermaids as a kids, then this one's for you. So grab your party planning checklist and let this guide help you to become the girl who has everything. You want thingamabobs? We don't just have twenty, we've rounded up thirty of our favorite Ariel-worthy mermaid bachelorette party ideas you can shop right now.

Mermaid Bachelorette Party Ideas to Shop Now:

Decorations | Games | Cake Decorations | Shirts | Welcome Bag Accessories | Additional Party Supplies

Mermaid Bachelorette Party Decorations

No need to trade in your fins for legs when you can make anywhere feel like the ocean with this bach party decor. And make sure your bachelorette invites let your girls know they're in for a whale of a good time.

One-Last-Splash Bach Party Decor

Mermaid 'last splash' bridal shower party decor kit
Photo: Walmart

This backdrop has all you need to celebrate your last splash. Plus, this makes a perfect photo background for all your under the sea-themed snaps.

Mermaid-to-Mrs. Bachelorette Banner

'Mermaid to mrs' bachelorette party banner
Photo: The Knot Shop

Here's a shimmery banner for the mermaid bride-to-be. The color reminds us of pearls and mermaid fins, making this a fin-tastic choice for your party.

Under-the-Sea Curtain

Wavy blue tinsel for mermaid bachelorette party backdrop
Photo: Amazon

These wavy curtains may have you holding your breath, but don't worry. You're not actually underwater.

"Sally Sells Seashells" Decorative Stand

Pink seashell decorative stand for mermaid bachelorette party
Photo: ThePartyDarlingShop

Live like a mermaid with this adorable, versatile stand. Set your snacks on it, shot glasses or even cute party favors for your wedding party.

Mermaid-Tails Table Covers

Mermaid shells table covers for mermaid bachelorette party
Photo: Michaels

The scale's the limit with these mermaid-inspired table covers. You get enough to cover twelve long tables, and you can also use these as makeshift wallpaper or backdrops.

Mermaid Bachelorette Party Games

Time to truly get the party started with some mer-mazing bachelorette games. And since there are plenty of printable game options, you can easily print out and customize your own for an unforgettable mermaid-themed bach bash.

Pin-the-Fin Game

Pin the tail on the mermaid bachelorette party game
Photo: Michaels

Pin the fin on the mermaid with this twist on a classic game. You can even up the stakes by gifting the winner a special sea-themed prize.

Drunk-in-Love Game

'Drink if' shell shaped playing cards for bachelorette party
Photo: Walmart

These shell-shaped drinking cards will keep the party going. Make mermaid-themed cocktails or mocktails to make the game even more exciting.

Last-Splash Game Pack

Last Splash Bachelorette Party Downloadable Invitation
Photo: karleyhilldesign

This variety pack of printable and customizable games isn't for guppies. It includes the best of your childhood sleepovers but with bachelorette twists.

Treasure Hunt Scavenger Game

Trading The Tail for A Veil - Selfie Scavenger Hunt Mermaid Bachelorette Party
Photo: Michaels

X marks the spot with this selfie scavenger hunt game. Find "treasures untold" of hilarious photos that you and your girls can look back on well after the bachelorette weekend ends.

"Double Dare Ya" Scratch-Off Bachelorette Game

'Trading The Tail For A Veil' - Mermaid Party Scratch Off Dare Cards
Photo: BigDotOfHappiness

"You're not getting cold fins now, are you?" Scratch off these cards to reveal what your dare is, but if you lose, then Ursula will claim your voice.

Mermaid Bachelorette Party Cake Decorations

"Here's something for tempting the palate." These dessert decorations can work for any mermaid-themed bachelorette party or even a more general beach-themed party (including a "Mamma Mia" bachelorette) while elevating your cake on-theme.

Wish-Upon-a-Starfish Bach Cake Topper

Starfish mermaid bachelorette party cake topper
Photo: My Wedding Favors

Be the star of the sea with this cake topper. Pro tip: You can also use this for your wedding cake.

Adorable Mermaid Tail Cupcake Toppers

Mermaid Tail Wrap Cupcake Cake Ring Bachelorette party Favor
Photo: Walmart

These cake toppers also work great for individual cupcakes for each of your gals. And you can even wear them as rings once you're done snacking on your treats.

"Part of Your World" Topper

Custom mermaid clam shell acrylic bachelorette cake topper
Photo: ShopEverthineDesigns

You can add your new last name to this customizable topper. Ask your baker for a pearl sheen on your cake to match this decor.

"Life is the Bubbles" Cake Topper

Flat Transparent Bubble Cupcake Toppers for Mermaid bachelorette party
Photo: Amazon

"We got no troubles, life is the bubbles" with this bubbly cake topper. This is a simple but effective nod to your mermaid theme.

Feeling Clam-orous Cake Topper

Clamshell cake topper for mermaid bachelorette party
Photo: SophiaGreyDesigns

This bit of decor throws it back to cartoon Ariel's whole aesthetic. You can also customize it with different colored fonts and backgrounds.

Mermaid Bachelorette Party Shirts

You and your mermaid squad could use matching gear for your bachelorette. And thankfully, none of these looks require a seashell bra.

Shell-Yeah Bach Tanks

Personalized Mermaid Bridal Party Wedding Tank Top
Photo: The Knot Shop

You're not a regular bride, you're a mermaid bride. This fabulous tank gives you the clam shell bra, without the discomfort.

Sea-Squad Goals Tees

'Mermaid squad' bachelorette party tshirts
Photo: DestinyDesignUS

Show the human world they've got a squad of mermaids in their midst. This batch of tees comes in a rainbow of colors, perfect for matching any color palette.

Merm-azing Bridal Party T-Shirts

Bride vibes / mermaid vibes tshirts for mermaid bachelorette party
Photo: Sprinkled With Pink

Get your vitamin sea with these merm-azing matching T-shirts. Let the town know just want kind of vibes you're about.

Mermaid-of-Honor Personalized Bachelorette Tee

Personalized Bridal Party Wedding T-Shirt - Mermaid Of Honor
Photo: The Knot Shop

Here's a shirt for the mer-maid of honor in your wedding party. We've also got another mermaid-themed shirt on our site for the rest of your ladies.

"Trading My Tail for a Veil" Tank

'Trading My Tail for a Veil' Mermaid Bachelorette Party Shirts
Photo: HappyJiffy

Feeling fin-tastic and ready to party? Shake your tails with these matching tank tops that just scream "mermaid."

Mermaid Bachelorette Party Welcome Bag Accessories

Time for the ultimate party favor bag to welcome your favorite ladies to this mermaid-themed weekend. No matter where you host your bachelorette, you'll feel just like you're under the sea with these welcome bags.

"Shell-abrate Good Times" Hat

Pink seashell baseball hat for mermaid bachelorette party
Photo: Sprinkled With Pink

Be happy as a clam with this adorable hat. And your wedding party will totally want to wear these long after the bachelorette weekend.

"Up Where They Stay All Day in the Sun" Beach Towel

Personalized mermaid themed bachelorette party beach towels
Photo: Personalization Mall

Give your favorite ladies a customized beach towel for those days in the sand. It's the perfect party favor they'll be bringing to the beach all the time.

"Gadgets and Gizmos A-Plenty" Kit

Mermaid bachelorette party survival kit
Photo: My Wedding Favors

Survive the weekend (and the wedding) with this handy beach-themed kit. Seriously, you'll be a total lifesaver when you pack this in their goody bags.

Carry-All Case for Your Dinglehoppers and Snarfblatts

'Mermaid Tribe' Large Personalized Canvas Makeup Bag for bachelorette party
Photo: The Knot Shop

This cute makeup bag can be used for all their little gadgets and gizmos. You can even use this as their party favor bag.

"Mermaid Hair, Don't Care" Scrunchie

Mermaid themed hair scrunchies for bachelorette party favors
Photo: PlumPolkaDot

Look, Ariel's hair flip was amazing but totally not realistic for a beach weekend. So here's a scrunchie to keep your bridesmaids' hair safe and secure.

Additional Mermaid Bachelorette Party Supplies

Here are some more beachy favors and favorites that will help set the tone for your party. Make you and your wedding party feel like you're "part of that world."

Sipping-on-Mermosas Pouches

'Mermaid water' bachelorette party drink pouch
Photo: Sprinkled With Pink

These cute drink pouches will make sure everyone knows which drink is theirs. Plus, it's giving adult Capri Sun vibes.

"We 'Tide' The Knot" Photo Props

Mermaid Bachelorette Party Photo Booth Props Kit
Photo: Target

Time for a photo opp with these mermaid-themed props. Use some of the decor we mentioned before as your backdrop for an Insta-worthy photo sesh.

Seas-the-Day Customizable Tats

'Let's Get Nauti' Grooms Face Bachelorette Party Tattoos Favors
Photo: ShopTattitude

Sparkle and shine during your bach weekend with these customizable temporary tattoos. They're a fun addition to any party, and you get your very own fin which is a win-win.

Sashay-Away Party Sashes

Mermaid Bachelorette Party Sash Set
Photo: Walmart

What bachelorette party is complete without a few sashes? This set has ones for the bride and bridesmaids so that everyone is covered.

Fish-Out-of-Water Float

 Iridescent Seashell Giant Inflatable Pool Float Toy for mermaid bachelorette party
Photo: The Knot Shop

We're thinking your mermaid bash needs a pool float. And this one matches the vibes perfectly.

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