Name: Mermaid Day
Start: 2026-06-29T00:00:00
Location: Lost Island Waterpark, 2225 E Shaulis Rd

Mermaid Day

Updated: 01 January 2026, 06:06 PM

Event Details

Date: 29 June 2026

Time: Mon, 10:30 AM - 6:30 PM

City: Waterloo, IA

Country: United States

Location: Lost Island Waterpark, 2225 E Shaulis Rd

Location Map

References and Tickets

All Events - Lost Island Waterpark

Join us for the World's Largest Swimming Lesson at Lost Island Waterpark! June 29. Mermaid Day ... Shaulis Road, Waterloo, IA 50701; T: 2600 E. Shaulis RoadÂ ...

Hours & Events - Lost Island Waterpark

Hours & Events Â· Themepark & Waterpark Open Daily June 5th-August 23rd 2026 Â· May Hours Â· Summer Hours Â· (Starting June 5th) Â· September Hours Â· November Sat 29.

Lost Island FAQs

Tickets can be purchased online by midnight the day before your visit. Online Ticket Schedule, Weekday, Weekend. June 2 - June 29, $32, $34. June 30 - August 10Â ...