I figured out how to skip from level 7 directly to level 11 without swimming past a giant shark, going through a cave full of spiders and monsters, or walking down a dark street with dangerous entities.
At level 7's entrance room, say "Man, this ain't a pool," 7 times.
That will lead you to level -33.1
Find a glass wall with water on the other side and no-clip through it to be sent to level 858
From there, exit from the front door to go to level 11