The Mermaid’s Cave

4.6 (102 Google reviews)

The Mermaid’s Cave

50a Queen St, Busselton WA 6280

Monday - Sunday: 9:00 AM until 3:00 PM

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Discover the enchanting allure of The Mermaid's Cave, nestled a mere 600 meters from the iconic Busselton Jetty. Visitors can immerse themselves in a mesmerizing world adorned with an extraordinary sea-shell collection and captivating aquariums brimming with the wonders of the ocean. The charming gift shop offers a treasure trove of carefully curated pieces designed to enhance any maritime‑themed experience. The Cave offers everything needed for guests to channel their inner mermaid.

The Mermaid's Cave is a mesmerising sanctuary that whisks visitors away to an underwater wonderland. Guests can immerse themselves in a sea of thousands of seashells and ocean treasures that captivate the imagination. A brand‑new seahorse aquarium is now on display, with a new rockpool aquarium opening in January 2026.

This extraordinary cave boasts a collection of meticulously curated aquariums, featuring its charming residents, Kevin the Eel and Dave the Pufferfish, who have quickly become beloved favourites among visitors. For those seeking a closer encounter with marine marvels, microscopes are readily available, offering a detailed glimpse into the intricate underwater world. The ambience is further enhanced with plush couches, vibrant colouring stations, and local art, creating an idyllic setting for relaxation and enjoyment.

Visitors can also explore the gift shop, which showcases an array of local art, exquisite pottery, dazzling jewellery, and stylish clothing.

Embark on a journey to The Mermaid's Cave, where every corner reveals a new facet of the sea's allure, making it the perfect haven for both wonder and relaxation.

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Location

The Mermaid’s Cave

50a Queen St, Busselton WA 6280

Reviews

4.6 (102 Google reviews)

Claire Lauren 16 October 2025

My partner and I visited The Mermaids Cave after I found it on social media and I truly got lost in the amazement of the place!! Run by such welcoming, kindhearted people, it’s no wonder this place shines with joy, wonderment and a deep rooted commitment to protecting, conserving & advocating for the earths natural wonders in our beautiful oceans. We learnt so much as we wandered through the cave chatting with Georgia as she rocked her beautiful baby boy and we ended up being in there for almost 2 hours!! I truly think I could visit again and again and learn more each time. She had an answer to every question we had and so much knowledge to share about all of the curious creatures and their habitats, both in their aquarium & in the wild! You can tell just how much love and passion the owners have for all of their animals by how well they look after each creature under their care and how well they know all of their little quirks and personality traits! I especially love Daisy the boxfish, that cheeky girl had me hooked with her countless bubble kisses and cheeky water spouts to catch our attention 😂 I can’t wait for my next visit! They’ve 2 more tanks with new friends coming soon, I hear a dazzling lion fish might be joining the family 😍, and a very pregnant seahorse currently who I’m very excited to see how many babies he has in a week or two!! For a family-run business who have gathered all of their creatures sustainably and built this business from the ground up, I was blown away at all we could learn & do both here & nextdoor at their sister business, The Mermaid Cafe 🙌💖 It was awesome to see so many healthy little creatures thriving in nutrient-rich, authentic ocean environments that have clearly been created with purpose, to reflect the ways that all the creatures in each tank would naturally co-exist in the wild. Hearing about all the roles each living thing has in each tank is so fascinating, and definitely reminded me of why I love deep-diving into marine biology and biodiversity facts & information. If you’re planning a visit to the aquarium & shell museum, and you have endless questions about the marine environment and its fascinating ecosystems & creatures as we did, I’d recommend visiting on a weekday that falls during the school term when there will be less patrons inside. They tend to be busier on school holidays, and understandably so as such an inviting space! The gift shop itself has so much to take in and look at, and I’ve already been trying to figure out when I can get there next as there’s so many more beautiful treasures I’d love to add to my own personal grotto!! Thank you guys so much truly for creating such a beautiful place and doing all that you do 🥰 we felt very lucky to be given so much of your time today! Kindest regards, Mandurah’s local Professional Conservation Mermaid, Mermaid Luna! 🧜‍♀️🌙💖

Oleksiy Zakutny 30 September 2025

Visiting The Mermaids Cave was an unforgettable experience for our family. The displays are absolutely stunning, with an incredible variety of marine life and seashells, each presented with so much care and detail. We were especially fascinated by the colourful reef aquariums — from clownfish dancing in the anemones to the vibrant corals glowing under the lights, it felt like stepping into another world beneath the sea. The collection of rare shells and marine curiosities was breathtaking, and it was both educational and entertaining for adults and children alike. Our daughter was amazed and couldn’t stop talking about the beautiful fish and the unique exhibits. The atmosphere is warm and welcoming, and you can feel the passion and dedication behind every part of the cave. It’s not just a display — it’s a journey into the wonders of the ocean. We highly recommend The Mermaids Cave to anyone visiting the area. It is truly a hidden gem that leaves you inspired and full of admiration for the beauty of marine life. Shopping is available as well 😊

Tanya Kramer 02 January 2026

The Mermaids Cave in Busselton is an absolute gem. The staff were incredibly friendly and super informative — you can really tell how passionate they are about what they do. The coral growing there is amazing, and seeing the seahorses was a highlight for me. I was lucky enough to watch them being fed and even see tiny baby seahorses, which felt very special. The whole place has a lovely, calm, relaxing vibe, and there is so much to see and learn. You can take your time, absorb it all, and walk away feeling genuinely grateful for the experience. We felt very fortunate to visit and will definitely be recommending it to others.

Anthony Corrigan 08 January 2026

I had a wonderful time exploring the Mermaid Cave, ranging from shells to the numerous fish tanks. I found the sea horse feeding time very educational. The guide was very knowledgeable and friendly. It was so relaxing sitting on the plentiful seat watching the fish in my favourite tank. Definitely worth a visit, there's lots for the kids to learn and do as well.