Melvin Bay is a coastal bay located near Rankin Inlet, Nunavut. It serves as a marine access point for the nearby Meliadine gold mine, with resupply vessels using the bay. The primary paddling access is via Rankin Inlet, and the route into the bay passes south of Pod Rock, Little Pod Rock, and Big Pod Rock. The southern approach to the bay is complex, featuring a chain of reefs, islands, and islets including named features such as Net Island, Stickle Islet, and Aukpik Island. To the north of the main route lie Guillemot Island and Guillemot Rocks. Navigation requires significant caution due to extensive shoals and rocks with depths as shallow as 2.3 meters in some passages. The land to the south of Rankin Inlet is very low, so only islands and land on the north side of the inlet should be used for radar fixing. A route leads through Access Passage between Buff Island to the northeast and Theron Island and Panorama Island to the southwest and west, though rocks with depths of 0.1 and 3.6 meters lie near mid-channel here. The bay receives treated saline effluent discharged via a diffuser from the Meliadine mine. Paddlers should be aware of potential commercial vessel traffic associated with mine resupply operations traversing the area.