New: Splash Castle

Bounce into First Time Waterpark Fun!

Make a splash on our Splash Castle, a floating inflatable bouncy castle designed especially for young adventurers.

Floating on our lake with access from dry land and created for kids aged 2 to 6 years, our splash park is the perfect introduction to water play in a safe, fun environment.

Little Splashers, Big Fun!

With mini inflatable slides, gentle climbing zones, and soft obstacle challenges, little ones can build confidence, balance and coordination. 

The shallow water (approx 10 cm) makes it ideal for first-time splashers, birthday parties, and family days out while older siblings are attending the waterpark.

Or it’s a perfect day out – just for little ones!

 

An Exciting and Safe Introduction

  • Age-appropriate inflatable obstacles
  • Every session supervised by a fully trained lifeguard
  • Shallow water allows for safe play, in a fun environment – participants do not enter the lake for this activity. 
  • Kids wetsuit hire is available for added comfort, for a small fee.

Book now for Mini-Adventurers!

Book now and be one of the first to enjoy a mini-adventure when our doors re-open in May! 

  • £8.00 per child for a 45 minute Splash Castle Session and admits an accompanying adult (over 18) free
  • Additional adults can be admitted for £5.00 each (please kindly note maximum ratio 1 adult to 3 children).
 
  • For Kids Parties: Scroll down to find out more!

Sessions from May 2026 - Book Now!

Jump into a fun first-time adventure at Splash Castle kids inflatable castle – our water activity in Dorset, perfect for younger years.

Look forward to big smiles, bouncing fun and happy memories!

Please read the Key Information (at the end of the page) before booking.

Party Information

Birthday parties Available!

Our Splash Castle is the perfect place for younger children to celebrate their birthday with friends!

Get in touch today to book a fun-filled party your little one will love.

Enjoy a 45 minute private session on the Splash Castle, followed by private use of one of our party areas.

Kids Party Package Includes:

45 minutes exclusive session on Splash Castle.

Special ‘Birthday’ rash vest for the Birthday little one to wear on the waterpark to celebrate their big day!  

Food: A burger or chicken nuggets, canned drink and chips for each child after their session.

Private use of a party area for one hour after your splash castle session.

Important Party Information: 

  • Parental Supervision

  • 1 adult is required to supervise every 3 participating children for private hire. 
  • All children must have a parent or guardian present in order to take part.
  • 24 Maximum participants including supervising adults.
  • All children must have a parent or guardian present in order to take part.

Restrictions

  • Minimum child’s age – 2 years old
  • Maximum child’s age – 6 years old
  • Minimum supervising adult’s age – 18 years old
  • Maximum weight – 115kg

Safety 

  • All parents/ guardians must read the safety signage before heading on the inflatable.
  • Children must be confident in shallow water.
  • Parents/ guardians are responsible for their children at all times.

Clothing

  • Suitable swimwear required, swim nappies if necessary.
  • Water shoes and socks recommended for comfort and grip.
  • Aqua socks available to purchase from reception for £2.50.

Parental Supervision

  • 1 adult is required to supervise every 3 participating children.
  • All children must have a parent or guardian present in order to take part.
  • 24 maximum participants including adults. 

Key Information - Please Read Ahead of Booking

Important Party Information:

  • Arrival time:
    • YOU MUST ARRIVE AT LEAST 30 MINUTES BEFORE YOUR SESSION TIME to allow time to check in and get changed if required.
    • If you are late, we will do our very best to catch you up or move you onto an alternative session, but this is at our discretion and we may not be able to do so.
  • WAIVER – PLEASE COMPLETE THIS BEFORE ARRIVAL (Your waiver will be sent by email ahead of your session, or you can access here – Waiver)
    • All activities at Dorset Adventure Park are adventurous, with inherent hazards where accidental injury is possible. Dorset Waterpark Ltd takes all necessary precautions to ensure participant safety, but to minimise risks, participants should familiarise themselves with potential hazards and follow Dorset Waterpark Ltd’s risk management guidelines, available upon request and displayed at reception.
    • All participants (even adults on sessions to supervise children) must sign a waiver, and for those under 18, a parent or guardian must sign a waiver on their behalf and also be present at the safety briefing to provide verbal consent for the child to participate. Failure to complete an Acknowledgment of Risk Form or comply with its terms may result in the participant being prohibited from taking part in the activity. In such cases, no refund will be issued, and Dorset Adventure Park will not be liable for compensation, consequential losses, or any other damages.
  • Payments:
    • Online Bookings – Full payment is required at the time of booking.
    • Party Bookings – A deposit payment of £100.00 is required on booking. The balance is due two weeks before your party.
    • If you cancel any booking more than 48 hours before your session, you are eligible for a 50% refund or full credit to use later in the same year.
    • Cancellations made within 48 hours of your session are non-refundable.
    • Sessions will proceed as normal in the rain – after all, you’re going to get wet anyway! We will only cancel a session if lightning is detected within 5 miles or if winds exceed Beaufort Force 5. If we do need to cancel, we’ll provide as much notice as possible and offer you a refund or the option to reschedule. If you decide not to participate, no refunds will be issued.
  • Photography:
    • Please note, you may unintentionally appear in some shots. If you prefer not to have photos or videos including your image used for promotional purposes, kindly inform our reception staff upon arrival.
  • There are Restrictions and Medical Restrictions that may preclude participation.
    • For full details please see our Medical Restrictions page.
    • If appropriate, inhalers and epipens and any other important medical equipment or medication must be easily accessible should you require them. You must make staff aware if you have any.
  • Splash Castle Restrictions
    • Minimum child’s age –  2 years old
    • Maximum child’s age – 6 years old
    • Minimum supervising adult’s age –  18 years old
    • Maximum weight – 115kg

For the full terms and conditions, please visit our Terms and Conditions page.