So there are times when being outside and wet is not as appealing as being inside and wet.
If you are visiting or staying in Staffordshire, then Waterworld is a great water theme park that your kids will love.
With a number of pools and many many slides and flumes, this place would eventually wear out the most energetic child.
Our particular favourites were the tyre rides where you would get boosted with water jets on the ride. The kids specifically loved the space bowl, where you drop into a large bowl and spin around until you eventually get dropped through the plughole!
With a pool-side cafe as well, you can spend the whole day out at the place.
If you live near by then you may also be interested in the kids parties they run.
Want to visit late? Friday evenings are Aqua-Disco night.