Alta Lake, on the west side of Whistler, has two parks where you can cool down by getting out on the water in a kayak or canoe for the day. Wayside Park rents kayaks, whereas Lakeside offers canoes. Both have picnic tables, barbecues and beaches; perfect for a day out in the sun.
If you prefer a more intense and guided water experience, Whistler Eco Tours offers paddle tours (paddle-board, kayak, and canoe) on both Alta and Green Lake. The staff is experienced and the company offers a variety of tours to choose from.