Exam, Connor's Hole, Dave's Dilemma, Bread and Butter, Freestyle Wave, Well Hole, Sunset, Snake Lips, M-Wave, Shut Down, and Biscuits and Gravy. Commonly kayak surfed waves on the Competition Channel include Cheese Grater, Sketch Wave, Bridge Drop, and Big Drop. Activities Water Sports Whitewater Rafting – Rafters with trained raft guides can paddle Class II, III, and IV rapids on the artificial whitewater channels. In 2010, the USNWC had 100,000 rafters. Whitewater Kayaking – Whitewater kayakers, from beginner to expert, can paddle, with or without instructors, alongside Olympic contenders. Periodic slalom races are scheduled for all ages and all skill levels. Flatwater Kayaking – Flatwater kayaking is offered on the Catawba River, which is adjacent to the USNWC's property. Stand-Up Paddle Boarding – Stand-Up Paddle Boarding is new to the USNWC in 2011. Participants stand on a board similar to a surf board and use a long paddle to maneuver along the Catawba River. Land Sports Ice Skating – Since 2019, the USNWC has hosted one of the largest outdoor ice rinks on the east coast. Skaters can enjoy 2 ice trails or free skate on of ice. Located in the Upper Pond of the Whitewater Center, the skating environment features three distinct programming areas and an on-ice Airstream serving hot and cold beverages with seating area. Mountain Biking – The USNWC has over of trails, ranging from beginner to advanced trails. Bikers can bring their own bikes and helmets or rent equipment from the USNWC. The Trail System – The USNWC has over of trails which are shared by bikers, runners, and walkers. The trails are used for various races including the Whitewater Race Series and the XTERRA Whitewater Trail Race and Triathlon. Bikers are asked to observe the "Rules of the Trail" as established by the International Mountain Bicycling Association. Rock Climbing – The USNWC's climbing center is one of the largest outdoor climbing centers in the world. The open-air climbing wall has over 40 roped climbs and reaches a height of . Aerial Sports Canyon Crossing – The Canyon Crossing opened as a new activity in spring 2011. The Canyon Crossing consists of a circuit of sky bridges with five different aerial challenges that span the south ridge gorge at heights of over . At the last platform is a zip-line which returns participants back across the gorge. Adventure Course – The Adventure Course is an aerial