Alice saw Cheshire Cat on top of a higher pathway as he cryptically told her that Mock Turtle's shell was going to be an advantage. She traversed the area and used the shell whenever she needed to swim through the pipes or dive underwater in order to reach the three hanging platforms that raised the water level.
Once the water level was high enough, she accessed the single doorway and dropped into the hole in the floor at the end of the hallway to swim to the other tube which had a portal to Labyrinthine Revenge.
Water Logged was similar to the sewers with its murky waters, dirty floors, moss-covered brick walls, and huge rusty pipes. The waters were also infested with Snarks that attacked Alice whenever she was nearby and the pipes had intake fans that could kill Alice and air bubbles that could refill her shell.