LogFAQs > #978782194

Forest Temple.

Despite the Shadow Temple being all about the undead, ghosts, and demons, it's actually the Forest Temple that remains the scarier dungeon. Every second in the temple is just ominous. It's filled with ghosts and monsters that can appear out of nowhere at all times.

There's also this strange feeling that the player is being watched by something. Combined with the creepiest music in the game and a solid boss, it is a brilliant first dungeon for adult Link to tackle.

Also, this temple was apparently going to be called the Wind Temple, although that got scrapped with the Wind Temple name instead being used in The Wind Waker. Hence why parts of the Forest Temple don't seem to fit the theme. Still, Ganon's Tower Forest Temple segment uses tons of fans, so some parts of the Wind Temple idea remain in this game.

Pretty much all of the adult "main" dungeons are good though. Each brings something to the table. Bottom of the Well for being nightmare fuel and Ganon's Tower also deserve a shout out.