Akumwarvik Bay is a coastal bay located within the McNeil River State Game Sanctuary and Refuge in Alaska. It is situated on the western side of Cook Inlet, with its waters defined by a regulatory line from a point at 59° 03.31' N. lat., 154° 11.24' W. long. to 59° 02.82' N. lat., 154° 10.18' W. long. The bay is characterized by extensive mudflats, which are a notable feature of its shoreline. The area is a significant wildlife habitat, with the presence of Alaskan brown bears frequently observed walking the mudflats. Bald eagles and cormorants are also known to nest in the shorelands east of the bay. As part of a State Game Sanctuary and Refuge, paddlers must be aware of and comply with all applicable state regulations governing access and activity. The broader region, including nearby Kamishak Bay, is known for remote and challenging coastal paddling conditions.