Notre Dame Bay, arm of the Atlantic Ocean, c.40 mi (60 km) long and 50 mi (80 km) wide, NE Newfoundland, N.L., Canada. The Exploits River empties into it. The bay has an irregular shoreline and contains many islands; Fogo Island is east of the bay. There are numerous fishing settlements along the coast, many of which have fish-processing plants; Botwood is the chief town and port.