Sand Fortress

Sand Fortress is the third area on Pikmin: Ultimate Doom and a large-scale sand castle. The landing site is near the bottom at the entrance to the sand castle. It's on top of the drawbridge over a moat of endless height. Inside the castle lies four floors. The bottom floor has multiple Cloaking Burrow-Nits and one Burrowing Snagret. One cave is on the first floor, Watery Catacombs, along with two treasures, one of which is in water. On the second floor has the Blue Pikmin Onion. It is cleverly guarded by several Sand Bloysters. When the one with a golden torso is killed, the only treasure of the floor will emerge and the walls around the Blue Pikmin's wild Onion site will fall. The Blue onion is in a watery hole, so dismissing the other Pikmin is a wise strategy. There is one cave on the second floor, Dune Gulch. The third floor holds two treasures and two caves, Dark Kingdom and Aquatic Nest. A Spotty Bulbear dominates and scours the area with four following Dwarf Bulbears. There are many puddles of water on this floor, which gives the Bulbear an advantage as it camps in the pools of liquid. Floor four has one treasure. The top floor is devoid of enemies but is filled with water.

Caves

 * Watery Catacombs
 * Dune Gulch
 * Dark Kingdom
 * Aquatic Nest