Castel Bay
| Castel Bay | |
|---|---|
| Location | M'Clure Strait |
| Coordinates | 74°12′02″N 119°35′11″W / 74.20056°N 119.58639°W |
| Ocean/sea sources | Arctic Ocean |
| Basin countries | Canada |
| Settlements | Uninhabited |
Castel Bay is a Canadian Arctic waterway in the Northwest Territories. It is a southern arm of M'Clure Strait on northeast Banks Island. The mouth of the larger Mercy Bay is less than 20 km (12 mi) to the east.These bays are a part of Aulavik National Park.
It is named by Vilhjalmur Stefansson in honour of Arctic explorer Aarnout Castel.