High Quality Content by WIKIPEDIA articles! The Grand Hotel is a historic hotel and coastal resort 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. Constructed in the late 19th century, the facility advertises itself as having the world`s largest porch. The Grand Hotel is well known for a number of notable visitors, including five U.S. presidents, Russian prime minister Vladimir Putin, Russian president Dmitri Medvedev, inventor Thomas Edison, and author Mark Twain.