Probably the most misunderstood dungeon in Zelda 64. Easy enough if you pay attention, by brutally freaking impossible if you get lost at any point. Also, easy to skip about 3/4 of it using simple logic and awareness of surroundings.
1: Oh man... I got soo lost in the Water Temple earlier. Took me a couple hours!
2: Really? I skipped to the boss after I got the Longshot.