Kalamalka Lake Provincial Park has a number of great hiking and biking trails. In the summer I love to swim at Twin Bays. There's also a dedicated doggy beach, large parking lots at Twin Bay and Cosens Bay and about a dozen spaces at Red Gate. There are Pit toilets at the Twin Bays parking lot, Jade Bay, Cosens Bay and the Cosens Bay Parking lot. Mountain Biking is permitted in most, but not all, areas.
Links to resources