Check before you travel
Operating days, ride availability and prices can change. Confirm your date on the official website.
We have not confirmed whether the park is open on any particular day.
Visitor information
- Park type
- Water park
- Park setting
- OutdoorOutdoor parks usually operate seasonally.
- Day visits and access
- Day tickets for the publicThe park offers day admission to visitors who are not hotel guests. Availability can vary by date.
- Admission
- Day pass $32-$36 onlineOnline day passes for ages 4+ are $32 to $36 plus tax; at the gate $39 (48 inches and over) or $33 (under 48 inches). Ages 3 and under free. One-Day Island Pass for both parks is $62 plus tax. Prices checked September 30, 2026.
- Published hours and season
- In-season waterpark hours are 10:30 am to 6:30 pm. Check the hours calendar for operating dates.Exact daily hours and exceptions are on the park’s official calendar.
- Address
- 2225 E. Shaulis Road, Waterloo, IA 50701Street address as published by the park.
- Attractions named by the park
- Lazy river, Water slides, Water coaster, CabanasIndividual rides have their own height, weight and supervision rules.
Information sources
Every fact on this page comes from the park’s official website. We do not visit parks or rank them.
- thelostisland.com/waterpark/hours-eventsSupports: address, hours, phone. Checked September 30, 2026.
- thelostisland.comSupports: classification. Checked September 30, 2026.
- thelostisland.com/tickets/waterparkSupports: access, admission, day pass, features, ticket url. Checked September 30, 2026.
- thelostisland.com/waterparkSupports: features. Checked September 30, 2026.