David presents an informative PDF on analyzing the market and determining feasibility. Originally presented at the 2009 World Waterpark Association Development Workshop in Orlando, FL.
"Hotels with indoor waterparks will fill rooms almost fully every weekend and school break all year long. For hotels that typically go empty on weekends, the indoor waterpark is the best thing to come along. In some cases, indoor waterparks will add up to 26 points of occupancy"