If your little ones enjoy ocean creatures, colourful coral reefs and playful sea characters, the **Under The Sea 3D Interactive Bouncy Castle** is the perfect centrepiece for their celebration. Designed to spark imagination and active play, this ocean-themed inflatable creates a mini underwater world that children can explore safely and confidently. With bright artwork, 3D sea characters and soft curves throughout, it encourages both learning and adventure.
The bouncy castle measures 12.6ft wide x 15ft long x 9.8ft high, making it a great fit for community halls, school events, nurseries and gardens. It has been created for children under 8 years old, with room for around six children to bounce together. Parents can watch easily thanks to the netted side walls, and a built-in shower and sun cover helps protect from the weather, making this a reliable choice for indoor and outdoor parties.
An Underwater World Made for Children
This bouncy castle is designed to feel like a friendly undersea learning zone. Children can bounce alongside turtles, dolphins, fish and colourful sea plants, and the 3D elements give it a wonderful sense of depth. The design works brilliantly for boys and girls, and it is particularly popular for ocean-themed birthdays, summer garden parties and nursery celebrations.
For families planning a full undersea setup, you can add matching items from our Under The Sea Hire collection. These include our Under The Sea Soft Play Set with Ball Pond, perfect for babies and toddlers who need a calmer space, or our air juggler ball pond for floating-ball fun. These options allow children of different ages to enjoy the same event safely.
Simple, Safe and Ready to Book
All BJ’s inflatables are maintained with care and regularly safety checked. This bouncy castle is PIPA tested for added reassurance, and every hire comes with:
- Electric blower
- Extension lead
- Safety mat
- Pegs or indoor sandbags
The inflatable is pegged into grass as standard for outdoor bookings. For indoor setups, we secure it with sandbags to protect hall floors. As with all our products, please avoid face paint, glitter, balloon confetti, streamers, silly string and party poppers, as these can stain the material.
How to Book Your Undersea Adventure
You can book quickly using our live online diary system. Simply select your date, complete the short form and your confirmation will arrive by email. Need help? You can always reach us through our Contact Us page, where we will reply with any information you need.
We provide free delivery across popular towns such as Bromley, Croydon, Beckenham, Orpington, Bexleyheath, Sevenoaks and many surrounding areas. View our full list on the Delivery Areas page.
More Products to Explore
If you are planning a larger event or need additional items, the undersea castle fits perfectly with our full range of children’s inflatables, including:
The Under The Sea 3D Interactive Bouncy Castle gives children a colourful, friendly and imaginative place to play. With its bright underwater artwork, built-in cover and child-friendly design, it is ready to bring a splash of fun to your next celebration.
