Morinville Splash Park Morinville Splash Park is open seasonally on the May long weekend. The Morinville Splash Park closes after the September long weekend. Free to enjoy; it is open from 10 am to 7 pm daily. Municipality: Morinville Website: http://www.morinville.ca/community/facilities-amenities/parks-playgrounds Address: 99 Avenue & 104 Street Amenities (if applicable) Categories: Parks & Campgrounds Previous Attraction Morinville RV Park and Campground Next Attraction Off-Leash Dog Park 3695