K-Zoners, don't try this at home... err... don't try this next time you're at a volcano!

Volcano Boarding is exactly like it sounds: tobogganing down the side of an active volcano! 

This totally mad extreme sport was invented by an Australian in Nicaragua (a country near Costa Rica) and involves hiking up the side of a volcano (carrying your wooden toboggan) then speeding back down!

A volcano-boarding holds his board over his head! Photo: Getty Images

Volcano-boarders wear safety onesies (kinda like the jumpsuits people wear when climbing the harbour bridge), gloves and safety goggles, but even then, this sport is seriously extreme.