Water park suggestions please

[Illbefinejustbloodyfine]

DC want to go to a proper water park type place. We live Cambs/Norfolk border.

DC are 8 and 10 and can swim, heights 130 and 140 cm ish.

Any suggestions that aren't at the end of the earth?

Get a cheap £12.99 flight to Lalandia? We live I the north and this is the cheapest way for us to do Legoland. Lalandia water park is spectacular

Are you looking for in the UK?

Siam park in Tenerife. As far as I know Ryanair have stopped flying to Billund so that’s the end of cheap flights for Lalandia

Yes UK, sorry.

WaterWorld in Stoke on Trent.

Oops hit post too soon! I think there's also a water park in Coventry but never been to that one so can't comment on how good it is. It might be a pool with a slide rather than a full on water park. Alton Towers has Splash Landings as well but IMO WaterWorld is better and a bit easier to get to.