The pro seen here is engaging in this activity--a hybrid of waterskiing & snowboarding
The sport of water skiing remained an obscure activity for 
several years after ... Their top speeds will generally be more than double the 
boat's speed, which means that the Pro men can reach speeds in excess of 116 
kilometres... [DOC] [TLE] Snowboarding - Wikipedia [PAR] Snowboarding is a recreational activity and Olympic and Paralympic sport that 
involves descending a snow-covered slope while standing on a snowboard... [DOC] [TLE] Waterskiing - Disabled Sports USA [PAR] When a student learns to water ski, they are first assessed to determine which ... 
Now 34, he is frequently seen slalom skiing, wakeboarding, or hydrofoiling ... not 
use a prosthesis when engaging in water sports, but for everyday activities he 
was ... Companies, Inc., (Chattanooga) with a new product  the Utah Hybrid arm.