TripAdvisor, the world’s largest travel site, that has over 600 million reviews and opinions covering the world’s largest selection of travel listings worldwide. Recently, announced “The 10 Hottest U.S. Domestic Destinations for the Summer”. Coming in at the top is Mackinac Island. Not only was Mackinac Island ranked the Top destination it’s also the only Michigan destination to make the list. The top 10 domestic destinations for U.S. travelers this summer was based on the greatest increase in seasonal hotel booking interest, including the average one-week vacation costs for hotels and airfare.