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Under The Sea Bounce & Slide Castle 12 x 18ft

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🐠 Under the Sea Bounce & Slide Castle Hire In Blackfen, Sidcup, Welling, Darenth, Bexley and Surrounding Towns

Make a splash at your child’s party with our fantastic Under The Sea Bounce and Slide Castle Hire, available across Blackfen, Swanley, Dartford, Bexley, Sidcup, Welling, Crayford and surrounding Kent & South East London areas.

This colourful ocean-themed inflatable is one of our most popular choices for younger children and is perfect for:

  • Home garden parties
  • Nursery fun days
  • Primary school events
  • Birthday celebrations
  • Community events
  • Christenings and family gatherings

Featuring bright underwater artwork with sea creatures and a built-in front slide, this inflatable is ideal for children who love ocean adventures and soft play fun.

Perfect for younger children, this castle is suitable for children up to 11 years old and is especially popular with nursery and primary school age children.

🐬 Features of the Under the Sea Bounce & Slide Castle

  • Large 12ft x 18ft bouncing area

  • Built-in front slide with approx. 4.5ft platform height

  • Bright and colourful under the sea theme

  • Built-in sun and shower cover

  • Netted side panels for easy supervision

  • Safety mats included

  • Suitable for children aged 11 years and under

📏 Size, Space & Access Requirements

  • Castle size: 12ft x 18ft

  • Height: Approximately 10.5ft

  • Required space: 14ft wide x 25ft long (including blower and mats)

⚠️ Important delivery access:
This inflatable is large and heavy, so we require at least 2.5ft wide, flat, clear and level access (such as a side gate, back gate or pathway to your garden or venue) to safely deliver and set up the castle.

This castle stands approximately 10.5 ft high and can fit in most halls in the Barnehurst and Wilmington area. Please check the ceiling height of your chosen venue, as a minimum height of over 11 ft is required to accommodate this particular bouncy castle. If you’re looking for local venues to host your party, please visit our Halls to Hire page, where we list locations we have delivered to in the past. We provide full delivery, setup, and collection, making it easy and stress-free for you to enjoy your event

🚚 Areas We Cover

We regularly hire our Under The Sea Bounce and Slide Castle across Blackfen, Swanley, Dartford, Hextable, Bexleyheath, Welling, Crayford, Stone, Bexley, Greenhithe and surrounding South East London and Kent areas. Our inflatable hire service is popular for children’s birthday parties, nursery fun days, school events and garden parties throughout the local area. If your location is not listed, please contact us as we may still be able to deliver to your area.

👶 Perfect For Nursery & Primary School Events

Our Under The Sea Bounce and Slide Castle is especially popular for:

  • Nursery fun days
  • School reward events
  • Reception & KS1 parties
  • Preschool celebrations
  • PTA events
  • Summer fairs

The bright colours and friendly sea-life theme make it ideal for younger children who may find larger inflatables overwhelming.

For bigger events or larger guest numbers, we also offer our matching Seaworld Theme Bouncy Castle Hire, which pairs perfectly alongside this inflatable for larger parties and school fun days.

Hiring both inflatables together is a fantastic option when catering for mixed age groups or larger numbers of children.

📆 Book Your Under the Sea Bounce & Slide Today

Our Under The Sea Bounce and Slide Castle is extremely popular during weekends, school holidays and summer months, so early booking is highly recommended.

Book online today or contact us for availability across Blackfen, Swanley, Dartford and surrounding areas.

👉 Use the Check Availability and Book Online buttons to secure your date.

Contact Us

📞Phone: 07790 742804
📧Email: carolinescastles@hotmail.co.uk
Or visit our Contact Us page and we’ll get back to you as soon as possible

Price: £140

Suitable for: Children Only

 Floor SpaceHeight
Unit Size:12ft x 18ft10.5ft
Required Space:14ft x 25ft11ft
Slide Platform Height:4.5ft
Required Access Width:2.5ft
Suitable
Indoors on Artificial Grass
Indoors on Hard Surface
Outdoors on Artificial Grass
Outdoors on Grass
Outdoors on Grass (event)
Outdoors on Hard Surface
Shower Cover Included

User HeightMaximum Users
Up to 1m6
Up to 1.25m5
Up to 1.5m4
Up to 1.8m4

Age RangeSuitable
Children
Adults

What's Included With Your Bouncy Castle Hire

All of our bouncy castle with Slides hires include:

  • Free delivery to local areas (please see our delivery page for details)

  • Free setup and collection

  • Free weather cancellation right up to the day before your booking

  • Electric blower included

  • Extension lead up to 45 metres

  • We ask for a cash payment on the morning of delivery

When setting up outdoors, our inflatables are securely pegged into grass as standard.

For indoor bookings such as community halls or venues, we provide sandbags and safety mats free of charge.

Quick Checklist Before We Arrive

**PLEASE NOTE**

To help everything run smoothly on the day, please make sure the garden area is clear of stones, gravel, dog waste, garden furniture, and any other obstacles before we arrive.

We can only set up inflatables on a suitable surface, with grass being the best option. Unfortunately, we’re unable to install on gravel, sharp stone, Bark chippings, concrete, decking, Astro turf surfaces, or unclean areas.

Important delivery access:
This inflatable is large and heavy, so we require at least 2.5ft wide, flat, clear and level access (such as a side gate, back gate or pathway to your garden or venue) to safely deliver and set up the castle.

Please ensure you have the minimum required space for your chosen inflatable fully cleared in advance. This helps us set up quickly and safely for you to enjoy.

It’s the hirer’s responsibility to make sure there is enough suitable space for the inflatable. If the area has been incorrectly measured and we’re unable to safely install the unit, a £30 fee will be charged to cover our costs.

Bouncy castle hire suitable surfaces in Crayford and bexley


Delivery Times

We deliver any time in the morning, between 7:00am and 11:30am and setup usually takes just 15–20 minutes. Once it’s ready, it’s all yours to enjoy for the day!

Collection Times

For a standard day’s hire, we collect between 5:30pm and 7:30pm. If you’d like to keep the equipment a little longer, no problem—just let us know in advance. A small late collection fee applies for hires extended beyond 7:30pm.

If you need a specific delivery or collection time, just let us know—we’ll always do our best to accommodate, especially for hall bookings.

Our latest collection times are:

  • 8:30pm for children’s bouncy castles (available from May to the end of August; late collection fees apply after 7:30pm)

  • 10:00pm for adult equipment (available in June, July, and August; late collection fees apply after 7:30pm)

We supply this Pirate Bounce & Slide Bouncy Castle for parties and events across Bexleyheath, Sidcup, Welling, Dartford, Crayford, Chislehurst and Barnehurst.

If you're looking for other themed bouncy castles to hire in Bexleyheath or bounce and slide castles hire in Sidcup, this inflatable is a fantastic choice for children's birthday parties, school events and family celebrations.

Our team delivers, sets up and collects the inflatable so you can relax and enjoy the day