Snake Bight Trail, Everglades National Park, Florida
It’s the only subtropical national park in the United States and the largest wilderness east of the Mississippi. Everglades National Park sustains temps above 77 degrees year-round and receives 50 inches of annual rainfall—prime grounds for mangrove growth, flamingo birds, and mahogany. The best part? No passport needed for your tropical-weather fix. Though only 3.2 miles, the Snake Bight Trail has a boardwalk at the end where you can do some of Florida’s best bird watching. Don’t let the name freak you out. Snake Bight Trail isn’t dubbed after biting snakes, but after a smaller bay in the larger Florida Bay area. Pick up the trailhead four miles north of Flamingo Visitor Center (38 miles south of the main park entrance). Bring bug spray.