“…Extreme sport activities are continually evolving, typical examples include BASE (an acronym for Buildings, Antennae, Span, Earth) jumping and related activities such as proximity flying, extreme skiing, big wave surfing, waterfall kayaking, rope free solo climbing and high-level mountaineering. While participant numbers in many traditional team and individual sports such as golf, basketball and racket sports have declined over the last decade or so, participant numbers in so called extreme sports have surged. …”