The Windchamber Tunnel is a room in the Temple Grounds. It appears in Metroid Prime 2: Echoes. The room is very small, yet gains access to the Grand Windchamber. Samus must use her Morph Ball to access the other side of the room. The Morph Ball tunnel is very bumpy and is made up of some bio-organic cocoon. The tunnel is somewhat transparent, which allows daylight to light up the tunnel. However, nothing can be seen of the room outside.