Okay then, I'll try writing out a description of the dungeon I want to design.
Lakeside Labyrinth
Themes: The dungeon is old, and apparently hasn't seen permanant inhabitants in a long time. The only enemies will be Keese and Gels, with the primary opponent of the player being the level itself.
Notes:
*Many areas of floor have given way, making liberal use of the hookshot required.
*The player will not be able to go back after getting the longshot, owing to a one-way shutter.
Treasure:
*The Longshot will be able to cross the largest gaps in the labyrinth and will be able to trigger certain switches, indicated by a certain symbol.