Route 392 begins on the western side of Springdale at an intersection with Route 390 and it heads northeast to leave town and pass through rural hilly terrain for several kilometres, where it passes by a lake before going through St. Patrick's. The highway now begins to follow the coastline as it passes through Coffee Cove and Beachside, where the road turns to gravel for the rest of its length. Route 392 now enters Southern Arm and comes to an end shortly thereafter at the community's harbour.