Hollow tree
Hollow trees are members-only trees that grow in the Haunted Woods and the Hollows area of Morytania, east of Canifis. The Priest in Peril quest is required to access them and Woodcutting level 45 is required to cut them. When chopped, hollow trees will either give 82.5 experience, or Bark and 357.7 experience. The former is much more common.
Hollow trees aren't particularly popular for training, as willows are faster Woodcutting experience and bark is not as valuable as logs, but they have two other uses. Bark is one of the materials used by the armoured wizard in the Wizards' Tower to make Splitbark Armour. The trees can also be useful for recovering Prayer points when fighting werewolves or banking in Canifis during Temple Trekking/Burgh de Rott Ramble, due to the ability to burn the bark in the nearby Haunted Woods Torches to recover 100 prayer points per piece of bark.
Cutting them can be somewhat dangerous due to the leeches and vampyres nearby, but leeches stop being aggressive when players reach combat level 105 and there aren't any vampires in the grove nearest to Canifis, close to the entrance to the Werewolf Agility Course and Skullball course.
Since the Branches of Darkmeyer update, hollow trees can be also found south of Port Phasmatys, without any monsters or torches.
Finding Hollow Trees
A fairly-safe, usually-uninhabited grove of Hollow Trees can be found Southeast of Canifis. The route from the Varrock teleport is:
