Those planning a summer stay in Saskatchewan Provincial Parks can book reservations starting on April 13 for seasonal campsites, and April 14 to 17 for nightly campsites, Camp-Easy yurts, group campsites, day-use facilities and swimming lessons. 

Read more : https://www.saskatchewan.ca/Government/News-and-Media/2026/march/31/sask-parks-online-campsite-reservations-open-april-13