Life Grove Tunnel is the only access to Life Grove, where one of the Chozo Artifacts is hidden. The room is an oval shaped tunnel, with two smaller tunnels leading out; the left from Great Tree Hall and the right to the Life Grove. The entrance to the tunnel is blocked by Bendezium. The oval tunnel loops round a smaller oval in the centre. In here, Samus must use her Morph Ball and Boost Ball ability to boost up the sides of the tunnel. This room also contains a Missile Expansion.