The Horgen swimming channel allows you to swim on the spot by precisely adjusting the speed of the water current. Roy Hinnen mainly uses it to analyze swimming technique (including video analysis) for swimming courses and seminars based on Smart Swim,targeted swimming training such as overspeed training, open-water navigation training, the Test your wetsuit or overcome your fear of swimming. Unlike in an indoor pool, the swimming channel offers a private space to work on your skills in peace and without spectators.