kidzdays
Illustration of Sandcastle Waterpark

The UK's biggest indoor waterpark, kept at greenhouse temperature all year: toddler lagoons and mini slides at one end, serious flumes and a wave pool at the other. When Blackpool weather does its worst, this is the answer.

It sells out in the holidays - book ahead. The biggest slides live in a paid add-on zone; deciding at booking is cheaper than deciding at the till, and skipping it entirely still leaves plenty of park.

Two money-savers are worth knowing. Last Splash evening sessions are cheaper than day tickets for the same slides, and with under-tens two hours in a waterpark is honestly the right dose anyway. The Wave Rider combination ticket pairs the Sandcastle with Pleasure Beach rides at £43.75, which beats buying the two days separately.

Practicalities that surprise first-timers: the whole building runs at a tropical 29 degrees, so adults sitting out still want swimwear rather than jeans. Food and drink inside runs on Splash Cash, their cashless system, so load a card at the start rather than dripping back to the lockers. And everything is book-online now, including grandparents who just want to watch.

What it costs: From £22.31 online, and booking online saves £2 a head on the door. Under-2s free. Everyone, including spectators, needs a booked ticket.

Know before you go

  • Some of the biggest slides are a paid add-on zone - decide at booking, it costs less than at the till.
  • Last Splash evening sessions are the cheap way in, and two hours is genuinely enough with primary-age children.

On right nowchecked 2 August

  • The Wave Rider ticket combines the Sandcastle and Pleasure Beach at £43.75, cheaper than booking the two separately.

Looking for more water & swimming near Blackpool?

What visitors say

★★★★ 4.3 across 8,767 Google reviews.

Read all 8,767 reviews on Google - filter by star rating there

The word this month

What people are actually posting about this place. Checked 2 August; videos play from the creator’s own account.

@_melsxaudios We had such a fun time at this incredible waterpark.
@sandcastlewaterpark You know where to find us - Sandcastle Waterpark, South Beach Promenade, Blackpool.

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