If you're near the S bank (London) don't miss....

[Blu]

this
It's only there until 25th Sept, but we loved it!
DS was wildly excited - we really did do it without getting soaked, but it might be an ideal to take spare clothes if your DC will be twmpted to flout the aim - which is to move from room to room without getting wet - dodging the fountains when they stop.

One to include if you are doing other things in the area!

Are you sure you did not both end up drenched Blu?
Looks great, a bit more high-pressure than Somerset House though

No! We were at the start of our day at the Thames festival, and we had learned our lesson at the fountain maze at hever Castle!
It's very exciting standing inside the box of water.