Northern Fairy Island
Northern Fairy Island is located at C1. It is the home of one of the Great Fairies, in addition to containing a postbox, a submarine, three rafts, a Blue Chuchu, and a sunken treasure.
Great Fairy
This Great Fairy can be accessed without any items. In the vanilla game, this Great Fairy will give you a Wallet upgrade.
Submarine
This submarine can be completed without any items. The player will need to use the ropes to make it from one side of the submarine to the other, and the chest will appear when the player reaches the back room which contains a Treasure Chart in the vanilla game. If the player falls to the bottom level, they will be pursued by Moblins.
Sunken Treasure
The treasure in this quadrant can be accessed by opening Treasure Chart 24 when chests are not randomized. The chest contains a Silver Rupee (200) in the vanilla game.