LogFAQs > #986901146

It was the least linear dungeon for sure. It's just annoying due to the amount of waiting you've got to do, between the pausing to equip/unequip Iron Boots, wait to float/sink, play Zelda's Lullaby at the water control spots (and wait for it to play the song back to you, and then raise/lower the water level).

I've never really disliked the dungeon, but the key in the room under the block that floats up when you raise the water to the middle level is easy to miss in your first playthrough, and it's easy to forget that wall you need to destroy on the middle level as well.