Ula'ula Island lay east of Akala Island and was the largest island in the Alola Region.
Its Island Kahuna was Nanu, and its guardian deity was Tapu Bulu, a Grass- and Fairy-type Pokémon.
Compared with the other islands, Ula'ula Island had a more complex and varied landscape.
It encompassed both the scorching Haina Desert and the frigid Mount Lanakila.
Mount Lanakila, blanketed in snow year-round, was Bai Shi's destination on this trip.
He vaguely remembered that a Totem Alolan Sandshrew lived there.
Unlike the Ground-type Sandshrew found in other regions, the Sandshrew of the Alola Region were Ice- and Steel-type Pokémon.
As long as he could find it, Bai Shi would have a chance to obtain an Ice-type Z-Crystal.
Besides that, Bai Shi hoped to use Mount Lanakila's unique environment to ensure that Cubchoo could evolve smoothly.
Through careful observation lately, he had noticed that the vast Ice-type energy within Cubchoo was once again showing signs of going out of control, undoubtedly indicating that it had reached the threshold of evolution.
Bai Shi was a little worried that after evolving, Cubchoo would be unable to control the sharply increased Ice-type energy within its body, causing a repeat of its previous rampage.
To prevent Cubchoo's evolution from affecting the surrounding environment and Pokémon.
Bai Shi had chosen Mount Lanakila as the site for its evolution.
After arriving at Mount Lanakila, Bai Shi did not rush to look for the Totem Sandshrew.
Instead, he focused all his efforts on Cubchoo's evolution.
To prepare, Bai Shi had stocked up on plenty of cold-weather gear and food suited to the tastes of Ice-type Pokémon.
Clearly, he intended to stay on Mount Lanakila for quite some time.
With the Fire-type Legendary Pokémon Heatran protecting him, Bai Shi could cope comfortably even while living in this