Thal'Dranath is a zone on the continent of The Broken Isles in the World of Warcraft game. . Thal'Dranath has quests for players leveled 100+. The area is not controlled by either faction and has quests for both factions. There are no dungeons or raids located in this zone.
Thal'Dranath is an island off the coast of the Broken Isles. You will not be able to venture into the zone when Legion begins but in a future expansion pack. Any attempt to get to the island will result in death from fatigue having gone so far from the mainland.