The Private Oasis is a particularly special island in The Wind Waker. This quadrant is best known for the cabana, which awaits its master’s return. To gain access to it, Link must abuse Mrs. Marie’s obsession with jewelry — specifically, 20 Joy Pendants — to obtain the Cabana Deed. Other notables include a Big Octo with eight eyes, a Korok named Drona, and a Treasure Chart that Link can access with the Hookshot or the Deku Leaf.
That cabana is the real crux of the island. Link will find that the place has a talking door with a stuffy butler persona that prevents him from entering. After Link receives the Cabana Deed, the Butler Door acts graciously towards Link (his new master) and allows him to enter. Inside, Link will find four breakable jars containing copious amounts of rupees, numerous housing fixtures including a bathtub, a puzzle game that the butler hosts, and a secret sewer system infested with rats and Redeads. One of those doesn’t quite fit with the others, in case you were wondering.
The real reason Link needs this property deed is to enter the secret sewer system that lies beneath the cabana’s fireplace. This area is easily one of the creepiest sections in the entire game. The sewer system has a highly restrictive feel that gives a very claustrophobic sensation. The sewer system keeps the player traveling through small hallways, cramped rooms, and tiny crawl spaces.
The creepiest room lies towards the end of the sewer system. To enter it, Link must drop through a square pit (which of course has no ladder, unlike every other pit in the game). At the bottom, two ReDeads lie in wait for an idiotic victim. The player can either jump straight into the pit and defeat them head-on with the sword, or they can throw bombs into the pit and kill the ReDead near the entrance. With one gone, the player can destroy the other ReDead without hearing that awful soul-piercing scream.
So that explains why Mrs. Marie was so willing to trade the Cabana away for some common jewelry.
The Private Oasis is a destination getaway — at least, as long as you or your significant other don’t mind a few ReDeads living beneath the fireplace.