World Waterpark is a water park located at West Edmonton Mall in Edmonton, Alberta, Canada. Opened to the public in 1986, it is the world's second-largest indoor water park after the Tropical Islands Resort in Germany. It has a maximum capacity of 5000 guests, an average air temperature of 31 °C , and contains the world's largest indoor wave pool with a capacity of 12.3 million litres.
World Waterpark has had 5000 guests.
That is the maximum capacity, but we don't know if it has ever had that many total.
( z1 guest :quant 5000 :poss ( z2 amusement-park :name ( z3 name :op "World" :op "Waterpark" ) ) )