Ultra Desert

Ultra Desert is one of the several worlds of Ultra Space acessible though Rarity 1 and 2 White Warp Holes in Pokémon Ultra Sun after defeating Necrozma, it's the home of Pheromosa.

Geography
Ultra Jungle is a giant desert with white sand and a little aqua blue, rocks covered with aqua blue giant diamonds some rocks form a kind of sand waterfall. To reach Pheromosa, the player needs to cross a rocky path with Mudsdale and push two giant stone, the player can see behind Pheromosa a valley of rocks that resemble burrows, behind them, it can see large mountains of sand.

Pokémon
A Pheromosa is found at each visit in Ultra Desert. It has an aura that boosts its Speed by two stages.