Cherry production in Michigan in the context of Montmorency cherry

Grand Traverse Bay (/ˈtrævərs/ TRAV-ərss) is an arm of Lake Michigan, located along the west coast of the Lower Peninsula of Michigan. The bay is separated from the rest of Lake Michigan by the Leelanau Peninsula. The bay is some 32 miles (51 km) long, ranges from 7 to 10 miles (11 to 16 km) wide, and up to 620 feet (190 m) deep in spots. It is the second-largest bay of Lake Michigan, behind Green Bay.

Grand Traverse Bay is further divided into an East Arm and West Arm by the 18-mile-long (29 km) Old Mission Peninsula. At the head of both arms of the bay is Traverse City, the largest city in Northern Michigan. The area surrounding the bay is renowned for its fruit production, especially for cherries and viticulture.

The Leelanau Peninsula (/ˈliːlənɔː/ LEE-lə-naw) is a peninsula of the U.S. state of Michigan that extends about 30 miles (50 km) from the western side of the Lower Peninsula of Michigan into Lake Michigan, forming Grand Traverse Bay. It is often referred to as the "little finger" of the mitten-shaped lower peninsula. The peninsula is a tourist hotspot, especially due to the popularity of Sleeping Bear Dunes National Lakeshore, which adorns the southwestern coast of the peninsula. The peninsula is also largely agricultural, notably for cherries and wine.

Most of the peninsula is politically part of the eponymous Leelanau County, which also administers the nearby Manitou Islands and Fox Islands. The base of the peninsula, at its southern end, is divided between Benzie County and Grand Traverse County. Traverse City, the largest city in Northern Michigan, is located at the southeastern end of the peninsula, at the head of Grand Traverse Bay.

Peninsula Township is a civil township of Grand Traverse County in the U.S. state of Michigan. The township had a population of 6,068 at the 2020 census, an increase from 5,433 at the 2010 census.

Peninsula Township is coterminous with (has the same dimensions as) the Old Mission Peninsula, which projects about 17 miles (27 km) north from its base in Traverse City into Grand Traverse Bay, an arm of Lake Michigan. The peninsula divides the Grand Traverse Bay into an East Arm and West Arm. The peninsula is well known for its cherry harvest and viticulture, and is included in the Old Mission Peninsula AVA, a federally recognized viticultural region. At the northern tip of the peninsula is Mission Point Light, which lies just south of the 45th parallel north.