Free running, also known as parkour, is a sport that involves moving quickly and efficiently through urban environments using a combination of running, jumping, climbing, and acrobatic movements. Participants aim to navigate obstacles and obstacles in their path, such as walls, railings, and rooftops, with fluidity and creativity.

Base jumping is an extreme sport where participants jump from fixed objects, such as buildings, bridges, or cliffs, and use a parachute to slow their descent and land safely. It is a high-risk activity that requires skill, experience, and careful planning. Base jumping provides an adrenaline rush and a unique perspective of the surroundings.

Cave diving is a specialized form of scuba diving that involves exploring underwater caves. It requires advanced diving skills and equipment due to the challenging and potentially dangerous nature of cave environments. Cave divers navigate through narrow passages, swim in complete darkness, and often encounter unique geological formations and marine life.

Street luges is a gravity-powered sport where participants ride a specialized board, called a luge, down a paved road or hill. Riders lie on their backs with their feet forward and steer by shifting their body weight. Street luges can reach high speeds and require skill, balance, and control to navigate turns and avoid obstacles. It is an exhilarating sport that combines elements of skateboarding and downhill racing.