7. Mount Haleakala, Maui
Location: Hawaii
Altitude: 10,023 ft
Elevation gain: 6,130 ft
Time required: a long day
Some people go to Hawaii to sunbathe and drink cocktails, but others, like you, are much more adventurous. This volcanic mountain is so beautiful it’s considered sacred by the locals. Also, if you decide to spend the night in your sleeping bag, the night sky will leave you speechless.