There should be a 200 feet (61 m) wide skiing space and the water should be at least 5 to 6 feet (1.5 to 1.8 m) deep. The towboat should stay at least 100 feet (30 m) from docks, swim areas, and the shore, and other boats should steer clear of skiers by at least 100 feet (30 m). Without proper space and visibility skiing can be extremely dangerous.