Located in Castaway Bay Resort, this 38,000-square-foot indoor water park includes a wave pool, a water roller coaster, waterslides, a kids area and whirlpool spas. Guests of the hotel receive free admission to the water park, but day passes for non-guests are also available. Day passes can be purchased at the hotel desk for $29 or online for $25. Guests visiting after 5 p.m. can receive extra savings on day passes for Island Evenings, which are $15 per person. Note: Day passes are subject to availability, and passes purchased online do not guarantee admission for a particular day.