Rhyl's former Sun Centre site could become a wake boarding facility and ninja warrior assault course under new proposals.
The tourist attraction - once one of the most popular visitor sites in North Wales - was knocked down in 2016 and the area cleared.
But under a new plan the land could now be developed into a Wake Park - creating around 40 jobs.
Pro Kite Surfing company is behind the plan with proposals put forward on their behalf by JPH Architects.
Backers say it will help boost the tourism offer in the resort and bring more visitors to the town centre.
JPH Architects said in a planning document that the facility would "respectfully occupy the former Sun Centre site".
A plan submitted to Denbighshire council said: "This would provide a year round tourism facility to help promote the visitor economy, provide and create an attractive, interesting and functional development combining outdoor recreation and activity with watersports and fun."
The plan would see wake boarders pulled along the sea water pool by cables while the ninja course would include inflatable obstacles in the water.
They added: "It is perceived that the visitor economy for Rhyl would be significantly improved by the addition of this leisure/sport facility as it will offer a variety of interesting events and training.
"The site will be able to give an exhilarating, exciting and distinctive experience throughout the whole year.
"We believe that interest from people outside of the area will be extensive as it is a unique venue with the nearest similar competitor being Surf Snowdonia."
"Denbighshire has a growing reputation in the outdoor activity sector and this project will expand the type of sports on offer. It is our belief that this high quality development should be supported and encouraged."
