The kind of sports where people risk their lives but do it for the thrill and excitement. There was a time when extreme sports meant skiing or surfing.
Maybe mountain climbing or white-water rafting. But by today’s standards, these sports are considered tame. These days, more and more people are becoming addicted to the thrill of extreme danger. Take the new sport of urban free climbing. This is hugely popular where climbers find a high-rise building and climb it. With no safety equipment.
Don't try this at home... or anywhere else..