Like regular sports, people usually do extreme sports for fun or physical activity. But an extreme sport does more than raising your heartbeat or building muscles. It tests the limit of your physical and mental abilities with its high adrenaline-pumping levels. Now, some sports are extreme by design, there is no way to do them in a way that is not dangerous. Wingsuit flying would be the perfect example of that. Others sports can be brought to extreme level in you push your limits, but can also be enjoyed safely as any other sport. Here examples could be surfing (easy small waves on a sandy beach vs. riding huge Jaws in Maui), mountain biking (cross country ride through the forest vs. Red Bull Rampage) or maybe snowboarding (going slow on a blue slope vs. hucking a 20m kicker).