If your trip to Marathon is all locked in but your itinerary is looking a little empty, let us give you a few hints and tips.Sombrero Beach is a noteworthy attraction in this fascinating city. Stop by and discover what it's all about.Stop by The Turtle Hospital. It's one attraction you'll usually find on travelers' must-do lists. Island Hoppers Aerial Adventures and Conch Air are also nearby and worth taking the time to see.