Whonnock Lake is a typical muskeg (bogland) lake. The only regular water input is from the north. There is an exit to Whonnock Creek on the south-east side, closed off by a dam.
Lake Park offers a wonderful stand of mature trees, a grassy playground,
an excellent small sandy beach, paddle boat rentals, swimming, hiking,
and nature study. Park facilities include a barbecue pit, concession
stand, picnic tables, a playground, washrooms, paddle boat rentals,
drinking water. A gazebo is for rent (604 465 2470).
park is home to native plants and thriving colonies of beavers and
muskrats, as well as to breeding populations of loons, mallard ducks,
and numerous small birds. The lake is stocked annually with rainbow
trout, and supports a substantial recreational fishery. Large tadpoles
can be found in the shallow water around the shores of the lake.