[1] The lake, while entirely within Canada, is located just north of the border between British Columbia and the state of Washington and is both fed and drained by the Chilliwack River, which has its source in the North Cascades of Washington state and Canada, which surround the lake on all sides.

Chilliwack Lake can be ideal for canoeing, kayaking, paddle-boarding and small motorized boats.

It is important to understand local conditions prior to departure as strong afternoon winds can strand unsuspecting people on the east end of this alpine lake.

Also note that dangerous currents exist on the north-west corner of the lake where the water flows into the Chilliwack River.

ATVs and dirtbikes are not permitted on the road beyond the south boundary of Chilliwack Lake Provincial Park.