Skip to product information
1 of 9

Young Wonderer

Under The Sea High Contrast Sensory Water Mat

Under The Sea High Contrast Sensory Water Mat

Regular price $39.99
Regular price Sale price $39.99
Sale Sold out
Taxes included. Shipping calculated at checkout.
Quantity

2026 Kiindred Parents' Choice Award Winner — Best Sensory or Open Ended Toy

Support Tummy Time & Vision Development

This high-contrast water mat is a wonderful way to encourage tummy time with your little one. Newborn eyes see the world as a blurry place—black and white patterns are scientifically proven to stimulate early vision development.

Your baby will love pushing the water around and watching the colourful sea creatures float, enhancing their visual focus, motor skills, and hand-eye coordination.


Features

  • High-contrast black and white artwork to stimulate vision development
  • Encourages baby to lift their neck and strengthen core, back, and arm muscles
  • Floating sea creatures promote sensory discovery and hand-eye coordination
  • Lightweight and travel-friendly—perfect for use at home or on the go
  • Folds flat for easy storage (fits neatly under the couch!)

Instructions

  1. Inflate the outer tube with air
  2. Fill the inner section with water (add ~100ml of vinegar to keep water clear)
  3. Press out any excess air and lay flat for tummy time fun!

💧 We recommend changing the water every 2 weeks.


  • Product Details
  • Size: 60cm diameter
  • Suitable for: 0–24 months
  • Material: Eco-friendly PVC. BPA and phthalate free
  • Safety: Independently tested to meet AS/NZS ISO 8124 toy safety regulations for Australia and New Zealand
  • Care Instructions: Surface wipe only
  • Designed in: Australia
  • Illustrations by: Jennifer Brindle
  • Made in: China

⚠️ Always use under adult supervision.

 

View full details

Customer Reviews

Overall rating: 5.0 / 5 from 60 reviews.

Customer photo review of Under The Sea High Contrast Sensory Water Mat

Great little mat that has made tummy time a lot more enjoyable for our little one. The high contrast colours keep him engaged and the water play will be great once he is moving around a bit more.

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Look at him already so focussed on those sea creatures — what a gorgeous photo! So glad it's making tummy time more enjoyable 🖤 — Michelle

Customer photo review of Under The Sea High Contrast Sensory Water Mat

I received this mat for my little one almost 6 months ago and love it! So much so, I brought another one this month for a girlfriend and her baby! It is the perfect distraction and when bub is getting heavy and only wants to be carried. We will often sit down and play with the mat together... Until Bub is happy for me to stand up and stretch!

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Coming back to buy one for a friend after 6 months — that's the best review possible! 🥹 And the image of sitting down together until bub gives you the all-clear to stand up is too relatable 😄 Thank you so much, Martha 🖤 — Michelle

Customer photo review of Under The Sea High Contrast Sensory Water Mat

Absolutely love the under the sea water sensory mat! My 11 week old has been enjoying tummy time a lot more and consistently getting stronger since using it! ❤️

Under The Sea High Contrast Sensory Water Mat

Customer photo review of Under The Sea High Contrast Sensory Water Mat

I am the grandma and I ordered it for my grandson who lives in Darwin. As you can see he is still very young but he is starting to interact with the activity. He loves tummy time and also enjoys sitting on it while kicking his legs and mummy holding him.

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Hi Jeanette 🤍 Thank you so much for choosing our water mat for your grandson. Your photo is absolutely gorgeous – thank you for sharing! Michelle x

Customer photo review of Under The Sea High Contrast Sensory Water Mat

My little ones loves her mat! It’s been a great tool to keep her entertained for longer tummy times! We also like using it outside with a little bit of water to add another dimension of sensory play!

Under The Sea High Contrast Sensory Water Mat

Store owner replied: We love this idea of adding water on top! Why haven't we thought of that?!?!

Customer photo review of Under The Sea High Contrast Sensory Water Mat

Love it great for newborns for tummy time as they can only see black and white to start with

Under The Sea High Contrast Sensory Water Mat

Store owner replied: You've summed it up perfectly — high contrast is so important in those early weeks when that's all they can really distinguish. So glad it's working beautifully! 🖤 — Michelle

My Daughter in law is having her first child in September it was on her Baby Shower list. She is an OT and couldnt resist this

Under The Sea High Contrast Sensory Water Mat

Store owner replied: An OT who can't resist — that means everything to us! 🥹 What a wonderful gift for your daughter-in-law and the new arrival. Thank you so much Mary Anne 🖤 — Michelle

My granddaughter not born yet , but I love it and can’t wait to try it when she arrives 😁

Under The Sea High Contrast Sensory Water Mat

Store owner replied: She is going to love it! 😁 So exciting — thank you so much Glynis 🖤 — Michelle

An excellent gift for my grandson. He is very responsive to the high contrast patterns and the water filled play mat is an excellent idea for tummy time.

Under The Sea High Contrast Sensory Water Mat

Store owner replied: So glad he's responding so well to the high contrast patterns — it's amazing to watch! The water mat is such a great tummy time tool. Thank you so much Donna 🖤 — Michelle

I love the water play mat, i had an issue when i got my delivery but i spoke with customer service and they responded so quickly and it was sorted within a few days. Very happy.

Under The Sea High Contrast Sensory Water Mat

Store owner replied: So glad we could sort it out quickly for you! Thank you so much for your patience and for leaving such a lovely review — means a lot 🖤 — Michelle

This is for my new grandson so he has not yet arrived but I love it

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Buying for a grandson who hasn't even arrived yet — what a wonderful nana! 🥰 He's going to love it. Thank you, Glenda 🖤 — Michelle

The activity mat hasn't yet been unpacked - it's a gift. My order arrived promptly, and was beautifully packaged.

Under The Sea High Contrast Sensory Water Mat

Store owner replied: So glad it arrived promptly and beautifully packaged! Hope the little one absolutely loves it when it gets unwrapped 🌊🖤 — Michelle

Just lovely purchased it for my 2 new granddaughters to share tummy time, not quite old enough yet but can't for them to enjoy it

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Two new granddaughters — how wonderful! 🥰 They'll grow into it so quickly and then they can enjoy it together. Thank you, Noelene 🖤 — Michelle

I am still to send it to my grandchild to the Philippines but I am 100% she will like it.

Under The Sea High Contrast Sensory Water Mat

Store owner replied: What a special gift to send all the way to the Philippines! I have no doubt she is going to love it 🌊🖤 — Michelle

For my 8 week old grandson. When he first saw black and white he was immediately riveted. It’s wonderful

Under The Sea High Contrast Sensory Water Mat

Store owner replied: "Immediately riveted" — that's the high contrast working its magic! At 8 weeks that visual focus is so important. Thank you for sharing, Margaret 🖤 — Michelle

Super easy to set up. My baby loves it makes tummy time easier

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Easy setup + happy baby = happy parents! So glad it's making tummy time easier 🌊🖤 — Michelle

My 3 mo loves these ! So easy to use for interactive tummy time

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Interactive tummy time is the best kind! So glad your 3 month old loves it 🌊🖤 — Michelle

It is a gift for a recently born baby. I will be keen to see the baby using this gift in the months ahead!

Under The Sea High Contrast Sensory Water Mat

Store owner replied: What a wonderful gift for a new arrival! I hope you get to see their little face light up when they discover it 🌊🖤 — Michelle

I gave this mat to my niece ‘s little 2 month old daughter and she loves it! She spends her ‘tummy time’ on or near it and is attracted by all the contrasting shapes and colours of the sea creatures. A really great purchase at a good price !

Under The Sea High Contrast Sensory Water Mat

Store owner replied: What a beautiful gift for your niece's little one! At 2 months the high contrast really does capture their attention so well. Thank you for the lovely review — it means a lot! 🖤 — Michelle

Incredible play mat! My 1month daughter loves it so does my 2yr old son. Excellent product. Biggest positive is piece of mind knowing its made from safe materials. Highly recommend

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Love that it's a hit with both your 1 month old and your 2 year old — that's exactly the kind of versatility we hoped for! And yes, safe materials were non-negotiable for us. Thank you so much for the lovely review! 🖤 — Michelle

So great for tummy time!! Baby really loves to reach and grab the sea animals!

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Reaching and grabbing the sea animals — love that milestone! So glad it's a hit. Thank you for your review! 🖤 — Michelle

Great tummy time activity for my 5 month old!

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Thank you, Prue! 🤍 We’re so glad to hear the water mat has been a hit for tummy time with your little one. It’s wonderful to know it’s being enjoyed at such a fun stage of development. Thanks so much for your support ✨

Love this for tummy time!

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Hi Krutika, thank you so much for the lovely review! So happy your little one is enjoying our water mat for tummy time!

Great fun and interaction

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Thanks so much for your review Emma! So happy to see you are enjoying our water mat!

5 Stars! Exceptional Customer Service & beautiful products I had an amazing experience purchasing from Young Wonderer and want to express my sincere gratitude for the excellent communication and customer service I received regarding my recent order, which included the Under the Sea Sensory Water Mat and Ziggy the Zebra. Although there was an unexpected delay for Ziggy the Zebra due to Customs, the team was incredibly proactive in providing updates and was clearly doing everything possible to resolve the issue quickly. I truly appreciate the multiple solutions offered, including the upgrade to Express Post, which ensured this Christmas gift for my new niece arrived before Christmas. Both products are beautiful and well made. The transparency and empathy shown, especially during the busy holiday season, truly stand out. It is clear that you genuinely care about your customers. I will certainly be shopping with you again and highly recommend Young Wonderer to anyone looking for great service and reliability.

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Thank you so much for such a thoughtful review, Ashleigh. I’m really grateful for your patience and understanding while we worked through the delivery delays, and I’m so pleased everything arrived in time for Christmas. It means a lot to hear that the communication and care stood out to you. I hope your little one enjoys exploring the Under the Sea water mat and that it brings lots of fun sensory moments 🤍

My granddaughter loves spending her tummy time on this amazing mat

Under The Sea High Contrast Sensory Water Mat

Store owner replied: I love hearing that the water mat is making tummy time more enjoyable for your granddaughter. Thanks again for sharing such lovely feedback. Michelle x

Brilliant product

Under The Sea High Contrast Sensory Water Mat

Store owner replied: Thank you so much, Joanne 🤍 I really appreciate you taking the time to leave a review — so glad you’re loving it. Michelle x