Where is the United Kingdom's largest indoor water park located?
Sandcastle Water Park (Blackpool) Sandcastle Waterpark is an indoor waterpark in an 84-degree tropical climate located at South Beach in Blackpool, Lancashire, England. It opened in 1986 on the site of the former South Shore Open Air Baths as a joint public/private partnership. Sandcastle Waterpark has more than 18 slides and attractions.
Heide Park The Heide Park Resort (in English Heath Park) is a theme park in Soltau, Lower Saxony, Germany. With an overall area of over 850,000 m² (210 acres), it is the largest amusement park in Northern Germany and among the largest in the country. It is part of the British-based Merlin Entertainments.