Waterpark Admission

Online Waterpark admission purchases allows you to print your ticket at home and use it any day during the 2019 season.  You can proceed directly to our wristband station.


  • Height and weight restriction apply for some rides

  • No rivets on swimwear for some rides.

  • Sorry no refunds for rain.

2019 Online Day Pass

$26.40 - Plus tax

(48" and Over)

Available At Gate: Day Pass

$27.80 - Plus tax

(48" and Over)

  • ​Senior/Military/AAA: $25.80 - Plus tax
  • Children: $23.00 - Plus tax (Under 48")
  • Children Ages 3 & Under - FREE

2019 Individual Online Season Pass

$85.00 - Plus tax 

Valid for the remainder of the 2019 Season!

2019 IndividualOnline Gold Season Pass

$195.00 - Plus tax

Gold membership entitles individual to unlimited access to the waterpark, free refillable mug $25 value.

  • $1 discount on golf.
  • $10 discount on cabana rental.
  • $10 discount on admission for friends and family once per visit.
  • 10% discount on food at Castaway and Treetop Cafes.
  • 1 FREE small locker rental per visit.

2019 Locker Pass

$25.00 - Plus tax

Entitles pass holder to 1 small locker rental per visit all season long!

2019 Two-Day Pass

$49.50 - Plus tax

Price does not include tax.

** Online Purchases:
The form you will print when purchasing online IS YOUR TICKET. Treat it with care. Bring the ticket to the park entrance to be scanned for authenticity. Do not make copies of the ticket. The first ticket scanned will be admitted; duplicates will be rejected. Tickets can be transferred by email. Lost or stolen tickets can be replaced. All tickets must be used in the current Lost Island season. Click here for schedule.

Please contact our Online Purchasing Customer Service with questions regarding the online purchase process. Call: 319-233-8414, durning normal buisness hours or email: info@thelostisland.com

We accept these major credit cards:

Return Policy:
Once the ticket has been purchased. Your ticket is non-refundable.

Prices are per visitor.


Due to weather, daily schedules are subject to change at the discretion of management. For the safety of our staff and guests, the park will close if the temperature drops below acceptable standards. If weather conditions are questionable please call ahead, 319-233-8414, to confirm park is open.