C-Tow provides services at sea to its members in the area bounded in the north by Campbell River and Desolation Sound and in the south by Victoria and the U.S. border, including all connected waters.

Dual membership provides coverage for 35 nautical miles into Washington state, in the San Juans down to 48 degrees - 25 mins. C-Tow works in cooperation with Boat USA and service should be prompt and efficient.