Most people down a water slide in one hour
Who
Sandcastle Waterpark
What
529 people
Where
United Kingdom (Sandcastle Waterpark, South Beach, Blackpool, Lancs, FY41BB)
When
BC

The most people down a water slide in one hour is 529 and was achieved by Sandcastle Waterpark (UK), in Blackpool, UK, on 26 June 2016.

The record was broken in celebration of Sandcastle Waterpark's 30th anniversary