Serena's Rainbow Reef Mermaid Tail

5 55 Reviews
Price Starts at $44.95

Machine Washable

Walkable Safety Features

Breathable, Fade-Resistant Fabric

100% Swimmable

Choose matching accessories to build your complete mermaid outfit. Reg. $54.95-$64.95, now starting at $44.95! 

The more you buy, the more you save!

Total Savings: $0.00
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Price Starts at $44.95


Serena's Rainbow Reef Mermaid Tail

Hmmm. Can't decide which color to get? Get them all!

The Rainbow tail is bright, cheerful, splashy, fun, and exciting. Vibrant hues of rainbow color sparkle like gems of sapphire, ruby, emerald, and topaz. Even the tail fin is a full-arching rainbow. This high-quality, stretchy material is made from 80% polyester and 20% spandex.

Made from a poly and spandex blend, the tail fabric is soft, comfortable and durable. It can be machine washed in a gentle cycle in cool water. Please note: Exposure to high temperatures (such as in hot tubs, dryers, etc.) can cause the spandex in the fabric to lose it's elasticity and become "stretched out". This is normal for all spandex fabrics (all mermaid tails)--we just like you to know ahead of time.

Learn more about Mermaiden Serena at!

How to Put on a Mermaid Tail

Genuine Fin Fun


Most Comfortable Monofin on the Market

Light, Flexible and Unbreakable

Fast, Powerful Propulsion

Fits Any Size Feet

30 Day Satisfaction Guarantee

Our exclusive monofin is the most comfortable, safe, and realistic mermaid monofin in the world. You will experience a new level of mermaid power as you glide through the water with the best mermaid monofin available! With our patented design and buoyant neoprene cover, there is no other monofin like it. It fits so naturally you can hardly see your feet and ankles inside, which helps you look like a REAL mermaid! Although our monofin fits comfortably and securely, you can also remove it quickly and easily with a light tug. Watch the video below to see the Fin Fun monofin in action!

Tail Protectors

Do you have an older pool surface that is rougher than most? Even when you're careful, the tips of your tail may wear through and develop holes when rubbed against a rough pool surface. Our Tail Protector includes highly technologically advanced, clear, waterproof protection tape that helps you "Love" your tail even longer!

Watch the videos below for more information on Monofins and Tail Protectors!

How To Protect Your Mermaid Tail

Watch how easy it is to kick off a Fin Fun Monofin & Tail -- no straps!

For Safety Information, click here!

Ratings & Reviews

55 reviews

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Ever since Mermaidens was released, I was wondering why on earth does Serena not have a rainbow tail when she is seen making a rainbow? And why did they rebrand Caribbean Sunset and Ariel green and Diamond Shimmer? why didn't they get the scale print like the others? And my wish came true, And Serena's Rainbow Reef is gorgeous, and the fluke (omg DAT FLUKE) is awesome. Rainbow, can i say any more? I might even get this over Celtic green or Aussie green. Oh god, when I saw this, and all the new tails, IT WAS LOVE. Now i can be a rainbow mermaid!

Looked great in Picture, looks even better in person


When I first received my mermaid tail, I was astounded by the detail in the tail fin of it. I thought it looked absolutely fantastic in the picture, yet when I look at it in person it is so much more realistic. I have yet to test it in the water, but when I put on the tankini and tail, my little sister believes I am a real mermaid.

rainbow reef


i really love the fin of the rainbow reef but the part that are like leggings are quite messy so I decided not to buy this one so I bought the Aussie Green instead



I just got my mermaid tail and it is AWESOME!! It looks so real i am so happy i have it i cant wait to swim in it. THANK YOU Fin Fun!!

Merry Christmas!


I got this for Christmas, and I can't believe how beautiful it looks! Since it's fabric, I honestly though that it would look a little unrealistic, but it's beautiful! The scales look so real and vibrant. Five stars! :0) Happy Holidays!

I love it


I got this tail with my Christmas savings and it is well spent I love it it looks so cool in person and in pics love it



amazing mermaid tail. so realistic looking and much fun for my 9 daughters! yes, a bit overpriced if your buying 9 of them but were rich as **** so it doesn't matter. haha not feeling sorry for those guys! they love them! thanks fin fun for this amazing realistic mermaid tail! my girls love it!! grace: thanks fin fun, love you! 6 tegan: thanks, great suit and lots of fun! - 9 elle:thanks. mines not the right colour though. disappointed - 17 ella: thanks mom love you!!! - 12 olivia: amazing, beautiful colour and fabric, will have no problem wearing this all summer! xx - 13 ingrid: yaaayyyy they finally came! thanks mom and fin fun ! love you more than life right now!!!! - 14 tyler (girl): yay. not. i hate mine and it was not worth my moms trouble and money! hate you... joking! love it so worth the time trouble and money!! best purchase ever!?!?!?! yes. the rest of my kids are not able to type. sorry! thank you fin fun ! olivia f.



I just got my mermaid tail in the mail and i love it so much. I am wearing it now LOL!!!!!!!! I love Fin Fun MErmaid and i will forever thanks for making my dreams come true!!!!!



I ᔕᗯᗩᗰ Iᑎ IT TᗯIᑕE ᗩᒪᖇEᗩᗪY ᗩᑎᗪ I ᒪOᐯE I T!!!!!TᕼE ᑕOᒪOᖇᔕ ᗩᖇE ᔕO ᗷᖇIGᕼT ᗩᑎᗪ ᗷEᗩᑌTIᖴᑌᒪ ᗩᑎᗪ TᕼE ᖴᒪᑌKE Iᔕ ᗰᗩGᑎIᖴIᑕEᑎT!!!!!!!!TᕼᗩᑎKᔕ ᔕO ᗰᑌᑕᕼ I ᗩᑕTᑌᗩᒪᒪY ᑭᒪᗩᑎ Oᑎ ᗩᔕKIᑎG ᖴOᖇ TᕼE ᑭIᑎK OᑎE ᗪᑌᖇIᑎG ᗩᑌGᑌᔕT ( ᗰY ᗷ-ᗪᗩY):

Looks Great and The Pictures Don't Help


This Tail is gorgeous. The colors are so much better in person. The pictures just can't capture it. I love it. And does anyone know if it can be worn in the ocean?

Pretty tail


I picked this one because its unique and beautiful.Also because I think all the tails are pretty and I like all the colors so I picked this one that seemed to pop out at me

OMG! that is so awsome to see.


Xoxoxoxoxoxoxoxoxoxoxoxo i love it.



I Love it. It is a lot of and so pretty. It definitely worth what you paid for. Thanks so much xoxoxoxo Linya



At my birthday party, we went swimming. All the little girls at the pool were like, "Omg look a mermaid!" After I got home I was itching to get back in the water! Amazing product!

Love it


Omg it is so amazing I am in love I want more it is much fun I could use it for hours maybe days

Dream Come True

by -

I absolutely ADORE the Rainbow Reef tail I received. I was watching the tracking thingy all day waiting for the thing to arrive and when I got back from a doctor's appointment it was on the doorstep! Fin Fun I want to thank you for making my dream come true! I am planning on practicing with the tail at the pool around the corner from my house!



It was the best I LOVE the bright colors!!!!!!!!!!!!!

Question about rainbow reef mermaid tail.


i got my Caribbean Sunset tail last year for my birthday and i really love it! I turned a lot of people's heads at the pool! I'm hoping to get a new one for my 9th birthday on June 30! I am curious to know if the Rainbow Reef tail's texture is smooth or what? <br><br>Fin Fun says: Yes, the Rainbow Reef mermaid tail's texture is smooth and silky swim suit material.



I love this mermaid tail it is amazing Thank you for the tail XOXO Kate

love it


I got it in the mail the shipping was fast the color is so pretty

Loving the Rainbow Tail!


We saw two girls who had these tails on at Heise and my six year old daughter fell in love! So for her birthday we purchased the rainbow tail and matching tankini. I was worried that it would be too much of a rainbow look but it's not. The rainbow color looks amazing in the water. My daughter took right off the first time she used it. We get ask questions all the time and even let one little girl try it on so her mom knew how it would fit. I want one myself, The Little Mermaid was the Disney princess movie of my childhood.



This tail was all I've ever wanted! It looks even better in person than it does in the pictures and I deFINitely recommend that you buy this! (Get my joke cuz it's fin fun mermaids and I deFINitely reccomend it )

A Dream Come True


Since I was a little girl I always wanted to become a mermaid. So thank you FinFun for making my dreams come true.

I love them


I think that they are awsome. They are an easy kick off, and really fun and pretty.And you can get so many ecsessory's. I only have the tale but,they look so fun.I love mermaids.

I love it


I love it so Mach :-)