Arboretum Access is a room in the Chozo Ruins. It appears in Metroid Prime. It is a thin, straight tunnel of sand-colored stone that contains a group of Shriekbats that fly down and at Samus from the other end of the room.
- Several structures can be seen through the open roof like the fountain, the arboretum, and a large wall with several spikes on top. Curiously, the Sunchamber Lobby and all rooms beyond it are nowhere to be seen, though the part of the arboretum that leads there is visible.