Arcatraz is a Dungeon in Netherstorm, which is only reachable with a flying mount or by being summoned there. There is a locked door infront of the Instance Portal. This is where the Arcatraz Key, or Warpforged Key comes in. In this post, I will outline what you need to do to acquire this Key and enter the Arcatraz.
The Black Morass is the second Dungeon in the Caverns of Time, which were opened in The Burning Crusade. When they first get there, players can’t enter this Dungeon, though. This is because there is an Attunement Questline that needs to be completed before players can enter the Dungeon.