C
- Cabot Head Lighthouse
- Campbell Bay (Manitoulin Island)
- Cape Croker
- Cape Croker Lighthouse
- Cape Henrietta Maria
- Cardinal
- Caribou Island
- Caribou Island Lighthouse
- Cathedral Bluffs Yacht Club
- Cedar Beach
- Chantry Island Lighthouse
- Chats Lake Community Boat Club
- Chenal Ecarté Range Lighthouse
- Christian Island
- Christian Island Lighthouse
- Chute A Blondeau
- Clarkson
- Cobourg
- Cobourg East Pierhead Lighthouse
- Cobourg Yacht Club
- Cockburn
- Colchester
- Colchester Reef Lighthouse
- Cole Shoal Lighthouse
- Collingwood
- Collins Bay Yacht Club
- Conestoga Sailing Club
- Constance Bay
- Cook Bay Yacht Club
- Corbeil Point Lighthouse
- Cornwall-Marina
- Corunna Range Lighthouse
- Crossover Island Lighthouse
- Crow Lake
- Cumberland
- Cutler