By Eric Hiss
Experiencing new foods and cultures can be thrilling, but it's adventure tourism that takes adrenaline junkies to the world's most action-packed destinations. Ready to take the leap? Consider these international locales for an exciting vacation of climbing, surfing, paddling, diving, trekking, skiing and generally getting awed and amped while exploring some of the most spectacular scenery on Earth.
Charles Darwin was one of the first outsiders to discover...