Buck Lake (the actual lake) is popular for swimming, boating and year-round fishing. Over most of the lake there are no boating restrictions, but in posted areas either motor boats are restricted to speeds of 12 km/hour, or all boats are prohibited. Sport fish species found in the lake include lake whitefish, walleye, northern pike and yellow perch.
Buck Lake is a large, shallow lake with a single basin that slopes gradually to a maximum depth of 12.2 m in its centre. The total surface area of the lake is 25.4 km2.