Ula'Ula Island/Manga

In the Pokémon Adventures manga
Ula'ula Island first appeared in the. ,, and Professor Kukui traveled there on their mission to deliver a Mirage Berry to. On their way, Kukui's yacht was approached by Professor Burnet and Lillie, who had come to join up with Sun's group. Before they could properly get together, a wild attacked the yacht and caused everyone to pass out with its powers. While Sun managed to rescue Lillie, who was trapped at sea, he and Lillie ended up falling unconscious and washed up on a beach, where they were found by Acerola. Moon, Kukui, and Burnet were rescued by the Aether Foundation and were taken to Aether Paradise to recover.

Later, a group of Ultra Beasts that were summoned at Po Town ended up breaking out of the town's barrier. The beasts proceeded to run amok throughout Ula'ula, causing destruction to various different locations. Innocent civilians caught up in the danger were transported to Hokulani Observatory for shelter.