Location from harry-potter-prisoner-of-azkaban by
A vast, ancient, and dangerous woodland on the Hogwarts grounds where Buckbeak the Hippogriff is tethered awaiting execution — and where Harry and Hermione hide him during their Time-Turner rescue.
The Forbidden Forest is forbidden for excellent reasons. Centaurs claim it as their territory. Aragog's Acromantula colony infests a hollow deep within. Unicorns drink from hidden streams. The Ford Anglia that Ron and Harry flew in second year has gone feral and now roams between the trees. This year the forest is where Buckbeak is tethered behind Hagrid's hut awaiting the executioner from the Committee for the Disposal of Dangerous Creatures. Harry and Hermione, three hours back in time, hide in the forest watching their past selves, waiting for the precise moment to untie Buckbeak and lead him to safety. The forest's darkness and the threat of werewolf-Lupin stalking the grounds make their Time-Turner mission genuinely terrifying. Harry casts his Patronus across the lake from the forest's edge, saving his past self and Sirius from a hundred Dementors.
Dense, towering trees so old their canopy blocks most sunlight even at midday. The undergrowth is thick with ferns and brambles. Roots buckle the ground. Mist clings to the lower trunks at dawn. At night the forest is impenetrable black, punctuated by the gleam of eyes and the crack of branches under large, unseen bodies.
Also known as: the Forbidden Forest, Forbidden Forest, the forest, the Dark Forest