Baynes Sound is the channel between Denman Island and Vancouver Island, British Columbia, Canada. The sound is a narrow western offshoot of the Strait of Georgia that separates Vancouver Island from the mainland of British Columbia. The area is actively harvested by the local oyster industry, as is apparent by an abundance of oyster farms. It produces 39% of the oysters and 55% of the manila clams farmed in British Columbia. The sound is 40 km (25 mi) long and is 3.5 km (2.2 mi) wide at its widest point, although the average width is less than 2 km (1.2 mi). The southern boundary lies around Chrome Island, a small island off Boyle Point, the southern tip of Denman. The northern boundary is less defined, but lies between Tree Island at the northern end of Denman and the Comox harbour. The s