Denali National Park and Preserve, Alaska
Often called the "roof of North America," Mount McKinley stands more than 20,000 feet tall. It's the reason many of the 400,000 annual visitors of Denali National Park and Preserve make the journey. The park is open year round, but the most popular time to visit is between late May and early September.
Take guided bus tours, backpack, fish, bicycle or mountaineer. You can even visit the sled dog kennel for a demonstration or to meet the dogs that help protect the park's 6-million-acre wilderness area.
Camping options vary by time of year, and one of Denali's six campgrounds should accommodate your style, whether that's popping a tent or camping with a vehicle or RV. Five campgrounds close for winter, and there's no nightly fee starting soon after the high season ends each year.