9. Volcano Boarding in León, Nicaragua

This one’s for the thrill seekers. In León, Nicaragua, you can hike up the black, rocky slopes of Cerro Negro, an active volcano. But instead of just walking down, you sit on a board and ride the ash like a sled. You’ll hit speeds up to 40 miles per hour, kicking up dust all the way. It’s messy, fast, and kind of ridiculous—in the best way. The hike up is hot, but the ride down is worth every step. León itself is full of history, colorful buildings, and laid-back vibes. It’s not too touristy, and the food is fantastic. This is the kind of adventure that makes your heart race and your friends jealous.