Jacksonville, Fla -

Adventure Landing in Jacksonville Beach is making sure the "fun"stays in fundraising, during it's fourth annual Slide-A-Thon event.

Shipwreck Island Waterpark challenges registered visitors to "ride until you're tired," knowing that this year, 100% of the proceeds will go to the American Red Cross.

Registration is underway and the first 96 people to register and pay the $10 entry fee will participate in the non-stop slides down "The Undertow."

Contestants must be at least 18-years-old, and at least 42 inches tall.

The event begins Friday, July 25, 2014 at 6 p.m. Contestants will receive a free daily water park admission, and will be eligible to win a weekend stay in Daytona, a surfboard and a family 4 pack of water park season passes.

For more information, including the short registration form, check out Adventure Landing's website.

You can also register at the park until 4 p.m. on Friday.