Station 4 is the last station on the Canals map. It is a small room that ends on a long corridor. At the end of the corridor there is an spray of an person entering an sewer, with the writings "BRB Outlands", which is a obviously sign saying that the map has ended and it continues on the Outlands. Station 4 is not seen in Half Life 2, because the way to it is blocked by a barrier made of rubbish. When the player enters a room to circle around the barrier, he goes to another room where you first see the Manhacks in the game.