The Calico Desert is located far to the northwest of Pelican Town. It is not accessible until the Bus at the Bus Stop has been repaired by completing the Vault bundles at the Community Center or by purchasing the Bus Repair for 40,000g from the Joja Community Development Form.
Once repaired, Pam will return to work as the Bus driver. A ticket to ride the bus to the desert costs 500g each time, although the return trip is free. Tickets can only be purchased when Pam is present at the Bus (10:10 am - 5:00 pm).
Sandfish and Scorpion Carp are present here, which the player is able to catch. The Sandfish is needed for the Specialty Fish Bundle in the Fish Tank. The pool is in the northwest area of the desert in front of the Skull Cavern.
The store Oasis can be located in the southwest section of the area. It is run by Sandy and sells a number of seeds not available in Pelican Town, along with an additional item that depends on the day of the week.
Located in the North-East part of the area lay three pillars that are the location of one of the games Secrets. It is the location that the Galaxy Sword can be obtained, by holding a Prismatic Shard and entering the center tile.
Located directly above the store in the Oasis is a hill in which lies the large bones of a sand dragon. While standing near the skull of the creature, you may interact with it and a text-screen then reads "Its maw gapes at the desert sun. Even in death, it yearns for a taste."
It is related to the Mr. Qi questline.