Grand Traverse Bay

Grand Traverse Bay is a bay of Lake Michigan formed by the Leelanau Peninsula in the northwestern Lower Peninsula of Michigan. The bay is 32 miles (51 km) long, 10 miles (16 km) wide, and up to 620 feet (190 m) deep in spots. It is divided into two arms by the Old Mission Peninsula. The entire bay is conterminous with the Grand Traverse Bay Bottomland Preserve. It should not be confused with Grand Traverse Bay of Lake Superior, located on the Keweenaw Peninsula.

Traverse City is situated at the south end of the bay where the Boardman River empties into the west arm. Cherry orchards line the bay region, giving rise to Traverse City's claim to be the Cherry Capital of the World. Several nationally known companies offer cherry-based products made with Northern Michigan tart cherries including Traverse Bay Farms, Cherry Central, Fruit Advantage, American Spoon, Cherry Republic and Old Mission Traders (formerly Cherry Stop).

The Grand Traverse Bay includes several important smaller bays: Northport Bay, Suttons Bay, Omena Bay, Bowers Harbor, and Old Mission Bay. Northport Bay, located at the northwest corner of Grand Traverse Bay is about 10 miles (16 km) long and 4 miles (6.4 km) wide. Northport Bay open to the east, except inside the arms at each end, with the Leelanau Peninsula on the West side. There are several shoals in Northport Bay marked by buoys. Bellows Island, a low gravel island covered by shrubs and located near the middle of Northport Bay, is owned by the Nature Conservancy; it is primarily known as a bird rookery, and is sometimes locally called Gull Island.