The Lake Tunnel is a room within the Magmoor Caverns. It appears in Metroid Prime. It consists of two platforms over a lake of lava, each with a Grizby and an intermittent flame jet a little higher. The tunnel at the far end contains a Burrower. It is also the first room of the Caverns with extreme heat, which will quickly kill Samus if she came here without the Varia Suit.