Whatever be the season, Pike Lake park (~20km south of Saskatoon) is a great place to unwind! The lake is encompassed by lush lawns pleasantly shaded by aspen, ash and birch trees.
The park offers endless activities to all age-groups: Try out kayaking/paddle-boating, swim and sunbathe along a long beach, let your kids play in the pool with a water slide, have an elaborate spread of picnic overlooking the lake, play team sports in the large lawns or go for a walk along the nearby woods! There are facilities for overnight camping as well.
Let the pictures speak for themselves!