https://ridewithgps.com/routes/29494901

Services to/from Lake Cowichan are available. Lake Cowichan to Port Renfrew return has nothing except in Port Renfrew. The Port Renfrew Pub is open to 11pm. The General Store to 8pm. 200m off the route (toward Victoria) is a new gas station, also open to 8pm. Limited food, but some snacks, drinks, and coffee, and a washroom.