3 water parks listed in Delaware: 3 outdoor. 3 parks with a current status notice. Counts include only parks we could check on an official website.
The water park is closed for the season and plans to reopen next summer. State-park water park in Killens Pond State Park near Felton, Delaware, with four 54-foot slides and a kids pool area. Tickets are sold by session; the 2026 season has ended.
Check official prices
View park detailsThunder Lagoon is closed for the 2026 season; mini golf, go-karts and food stay open into the fall. Outdoor seasonal water park in Fenwick Island, Delaware, with six slides and a 400-foot lazy river. Timed two-hour tickets are sold at the gate, and parking is free.
Check official prices
View park detailsThe park's published season ends on Labor Day (September 7 in 2026) each year, so its 2026 season is over. Check the official website for next season's dates. Outdoor water park at Midway Speedway Park in Rehoboth Beach, Delaware, next to go-karts and mini golf. All-day and twilight water park tickets are sold separately.
Check official prices
View park details