Glacier Surfing
What do you think of when you hear the word "Alaska?" Snow-capped mountains? Palins everywhere? Meth?

If you said, "Gigantic chunks of glacier crashing headlong into the sea, funneling the energy down an icy tunnel in the form of a monolithic Michael Bay mega wave," well -- good job. You're crazy and you probably already know about glacier surfing. And you're crazy.

Wingsuit Flying
Imagine someone gave you a bright yellow outfit that made you look like a starfish that crapped its pants. Would you wear it? Of course not. But what if they told you that the starshitsuit could let you fly? Out of a plane. Not so judgmental now, are we?

Combine Demolition Derby
This is a combine wheat harvester:
Yes, we know: It does look like a Transformer right before it morphs into a gigantic robot with spinning razor-studded death claws where its hands should be. But this machine doesn't need to transform into shit to do damage -- it's perfectly deadly the way it is. And in the northwestern corner of America, people have taken these metal beasts and made a game out of smashing them together.
Volcano Boarding
Volcano boarding is a sport so extreme that we're legally obligated to mention Monster Energy Drinks and the word "stoked" every time we bring it up. It was invented by Australian tour guide Darryn Webb who'd spent a good deal of his childhood learning to sandboard in the dunes of Queensland. So, while vacationing in Central America, he took one look at the Cerro Negro, a volcano so dangerous that it's erupted no fewer than 23 times in its 159 years of existence and said, "Same thing."