What are some of the most extreme and dangerous sports in the world?
Here are a few extreme and dangerous sports:

- BASE jumping, jumping from fixed structures such as buildings, antennas, or cliffs, then deploying a parachute
- Ice Climbing, ascending glaciers or iced-over slopes using tools like crampons and ice picks
- Bull Riding, a rodeo sport in which a rider tries to stay atop a bucking bull without falling
- Rock Climbing, climbing vertical or near vertical rock formations, sometimes without the use of anchors or protection (free soloing)
- Wingsuit Flying, jumping from an aircraft and gliding through the air wearing a specialized suit that resembles a bird's wings, sometimes also combined with BASE jumping
- Whitewater Rafting, navigating rapids and white water in an inflatable raft
- Motocross, a form of off-road motorcycle racing with jumps, obstacles and tight turns
- Wing Walking, exiting an aircraft while in flight and traversing the wing for a thrill

Note: all of these sports can be extremely dangerous and require specialized training, equipment, and experience to participate in safely.
Please tell me more about Whitewater rafting.
Whitewater rafting is an outdoor activity that involves navigating down a river in an inflatable raft while navigating through rapids, currents, and other obstacles. It can range from a leisurely float down a gentle stream to a challenging and dangerous adventure on rapids with Class IV and V difficulty ratings.

Whitewater rafting requires a high level of skill, experience, and physical fitness, and participants must follow strict safety guidelines. This can include wearing a life jacket, helmet, and other safety gear, as well as following the instructions of a trained guide.

There are many different types of rivers and rapids to choose from, and each has its own set of challenges and dangers. Whitewater rafting trips can range from half-day excursions to multi-day trips that can take you through remote wilderness areas.

Regardless of the type of trip, whitewater rafting is an exhilarating and rewarding experience that can provide a sense of adventure, challenge, and connection to nature.