Complex sentence: The Grand Hotel is a historic lodging facility located on Mackinac Island, Michigan, a small island located at the eastern end of the Straits of Mackinac within Lake Huron between the state's Upper and Lower Peninsulas.
Split into simpler sentences: The Grand Hotel is a historic lodging facility located on Mackinac Island, Michigan, a small island located in the Straits of Mackinac. It is located in Lake Huron, at the eastern end of the Straits of Mackinac, between the state's Upper and Lower Peninsulas.