Frigate Access Tunnel is a room in the Tallon Overworld in Metroid Prime. It is a short cave-like tunnel of mossy rock and debris from the crashed Frigate Orpheon. It narrows to a section containing Tangle Weed, then opens out again into a large, round, metal tunnel that leads to the far door. This tunnel is actually part of the Frigate. It crashed through the end of this room during the crash, thus providing entrance to said Frigate.