The Black Lake (alternatively known as the Great Lake Dpends on if you go for movie or books) is a large body of water located to the south of the castle. It is about half a mile in diameter and the Hogwarts plumbing network drains into it. Every school year at Hogwarts, first years sail across the lake to the castle led by Rubeus Hagrid in boats as per Hogwarts tradition. When they got to the school, they are then Sorted into their houses.



















