Chantrey Inlet is south of the Boothia Peninsula. King William Island is the large island southwest of the Boothia Peninsula.
Chantrey Inlet (Tariunnuaq) is a bay on the Arctic coast of Canada. It marks the southeast "corner" where the generally east-west coast turns sharply north. To the west is the Adelaide Peninsula and to the east is mainland. King William Island shelters it to the northwest. If King William Island were not an island then Chantry Inlet, Rae Strait, Wellington Strait and James Ross Strait would be a single large bay. To the west the Simpson Strait separates King William Island from the Adelaide Peninsula. Its mouth is marked by Point Ogle on the west and Cape Britannia on the east. West of Point Ogle is Barrow Bay, Starvation Cove and Point Richardson. The Back River enters from the south. Near its mouth is a weather station on the Hayes River.Montreal Island is contained within the Inlet. It is 100 mi (160 km) long and 50 mi (80 km) wide at its mouth.