William Lake & Turtle's Back Hike This well known hike is worth the drive down 10 km of gravel road. Great all-purpose desitination. Good swimming and paddling in William Lake as well as camping. This small lake in Turtle Mountain Provincial Park is notable for several reasons.  The water is amazingly clean and free from algae making it one of the few lakes in southwestern Manitoba where one can really enjoy swimming. The restriction on the use of gas-powered boats makes it a great place for a paddle.  A day at the beach is so much more enjoyable (and safer) without the noise and smell of power boats. The nearby Turtles Back HIking Trail is a bonus and the summit offers one a great view.   Ranger Station 1921 - Archives Canada ca. 1921