Racing down an active volcano at 25-30 miles per hour is a thrill like few others. You and your wooden board can literally crash into sharp volcanic rocks. Although this can leave a few marks, the experience is worth the bragging rights. Going up to Cerro Negro in Nicaragua is just a bonus adventure as you’ll have to hike for an hour or so, according to VolcanoBoard. The surf down starts at 2,388 feet and can last for just 3-4 minutes, depending on how fast you’re going.