Highway 4 remains closed at Cameron Lake Bluff due to wildfire affecting the area. A detour is in place and drivers are strongly encouraged to avoid travel in the area unless essential. The detour will route traffic from Port Alberni through to Lake Cowichan via Bamfield using forest-service and privately owned industrial roads. The gravel detour route has narrow sections, sharp curves, single-lane bridges and challenging terrain. There is no cell service, gas stations or washroom facilities on the detour route. Regular passenger vehicles, such as cars, vans and commercial vehicles weighing less than 63,500 kilograms, can travel through the detour corridor. No over-height or over-weight vehicles will be permitted. The detour route extends travel by four hours and includes difficult driving conditions. It is strongly encouraged to wait to travel if possible.