Water Temple (Ocarina of Time)

Deep under the vast Lake Hylia lays an ancient temple known as the Water Temple. It requires the use of the Iron Boots to get to its entrance gate and the Hookshot to simply open it by shooting the target above. the zora tunic is completley needed. Its enigmatic structure consists of various levels and requires the use of playing the Zelda's Lullaby to each of the Lion-type markings on the walls. You will need to use all your intellectual skills and cunning surviving techniques to truly conquer this temple. This will be hardest temple you have come across yet and possibly the hardest in the entire game. Be very aware of your surroundings since you never know what to really expect. You shall also come to confront your very own shadow-self sometime while progressing your way forward. Once you aquire the Longshot, you can get the boss key and get to the aquatic boss, Morpha

Minor Enemies and Traps
Blue Tektite, Shell Blade, Stinger, Spike, sink holes, whirlpools, spikes

Trivia

 * The Water Temple was made completely as a tribute to Lord Jabu-Jabu.
 * Due to the frustrating swimming mechanics and the incredible length, many regard the water temple as the most "annoying" dungeon in OOT, and some, the most difficult Zelda dungeon yet.