A Journey door is a special door that can only be unlocked by activating a series of Journey cloths. There are four doors in the Ages found in Yeesha's Journey, each requiring its own set of cloths to be activated first. A second set of doors are found in the Ages of the Second Journey, which require their associated cloths to be activated in a specific sequence within a short amount of time.
Behind each Journey door is a dead-end tunnel. A person who walks deep enough into one of these tunnels is linked to a bahro cave.
The most famous Journey door is the one in Eder Kemo. The DRC tried repeatedly to open this door, but failed. In September of 2002, Phil Henderson was last seen near the door before his disappearance, and reappeared behind that door in November of 2003.