The South Quarantine Tunnel is a room in the Phendrana Drifts area of Metroid Prime. It contains a short Morph Ball tunnel through snow and across two small open bridges. Two Pulse Bombus patrol the area and present a hazard to Samus due to their dropping projectiles.
- The Bombus can be killed if Samus jumps high enough and locks on them before entering the Morph Ball tunnel. This can be done from either side of the room.