Waterpark Admission

Tickets purchased online must be used on selected date. Admission tickets can also be purchased at the gate. 


  • Height and weight restriction apply for some rides

  • No rivets on swimwear for some rides

  • Sorry no refunds for rain

Cyber Monday - Black Friday Sale for Summer 2022!

Purchase half-price tickets valid for any one-day visit in June 2022.

Adult & Children: $19.50 


2021 Date Specific Admission - Online Only

Purchase tickets in advance for a specific day and guarantee your entry. 

Adult & Children: Starting at $30.00

Must be purchased by midnight the night before the day of your visit. 


2021 Day Pass - Available at the Gate

Tickets available at the gate! Save money on admission tickets for the little ones! 

48" and Over: $35.00

Children Under 48": $29.00

Children Ages 3 & Under: FREE

Discounts Available at the Gate: Valid ID Required

Senior/AAA: $33.00

Military: $30.00

2021 Waterpark Two-Day Pass - Available at the Gate

Come back and save! Passes must be used in two consecutive days. 

Adult & Children: $52.00

2021 Bundle Pass - Available at the Gate

Get an all access pass to everything Lost Island has to offer. Bundle Pass includes one waterpark admission, one round of miniature golf, and one go-kart race. 

Adult & Children: $42.75

2021 Standard Season Pass

Standard Season Pass is valid for admission for one for the entire 2021 season!

Adult & Children: $150 per person - Plus tax 

All season pass holders must have a signed 2021 Season Pass Social Contract on file for entry


2021 Gold Season Pass

Gold Season Pass membership is valid for admission for one PLUS extra benefits and discounts for the entire 2021 season!

Gold Season Pass membership includes:

  • Souvenir Refillable Mug for FREE refills all season long!
  • NEW AMENITY - Unlimited miniature golf all season. 
  • 10% discount on cabana rentals.
  • $12 discount once per visit, per day on admission for a friend (at the gate).
  • 10% discount on food at Castaway, Treetop Cafe, High Tide Cafe.
  • Locker Pass for 1 FREE small locker rental per visit.

Adult & Children: $199 per person - Plus tax

All season pass holders must have a signed 2021 Season Pass Social Contract on file for entry


2021 Locker Pass

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


** 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.