Water Tank

The Water Tank is a room in Cryosphere in Metroid: Other M. As the name implies, it is full of Water, and by association, Skulteras. Samus must dive into the water to open a hatch. This will drain the water from the room (along with Samus) and flood the connecting room. When Samus returns, she is ambushed by a group of ULF 53. A pathway in here leads to a Missile Tank.