Chocolate Lake. In summer, lifeguards supervise this lake, just off the Northwest Arm, that's popular for swimming. The name doesn't mean that the water is delicious, but rather comes from a former chocolate factory on the site. Although it's in a residential area, the lake is surrounded by trees, giving it a secluded feel, and there's a nice beach. Water quality is tested weekly (locals avoid swimming in Halifax Harbour or the Northwest Arm itself because of the dubious water quality there). 2 Melwood Ave., Halifax, Nova Scotia. 902/490–5458.