The Wailord-shaped ship in the west contains a restaurant, where the player can pay 500 for a bowl of Z-Noodles of varying sizes. After each meal, the player receives a complimentary Heart Scale. After the player has passed Hapu's grand trial, once a day if they order a bowl of Zumongous Z-Noodles, Hapu will join the player and pay for both meals herself, as well as giving the player her Heart Scale.
Mina's houseboat is located in the Whiscash-shaped boat at the east side of the village. Though the player cannot meet and talk to Mina here unlike the other Trial Captains and their homes, they can talk to her parents and learn more about her.
Trial
In Pokémon Ultra Sun and Ultra Moon, after resolving the Necrozma crisis, the player can talk to Mina here to start her trial, which starts immediately with a battle with her.
After defeating her, Mina will give the player a Pink Petal and tell them to collect the six other petals from the other Captains. After collecting all the petals, Mina will take them and make a Rainbow Flower out of them. This will attract the trial's Totem, Ribombee.
In the battle with Totem Ribombee, it will call Pelipper on its first turn, and call Blissey if its HP is below approximately 2/3 (if the ally Pelipper has been defeated). If its HP drops below approximately 2/3 before it has a chance to call an ally, it will call Blissey first, then call Pelipper at the first opportunity after Blissey has fainted. Once an ally is defeated, Totem Ribombee cannot call it again.
Defeating the Totem Ribombee will complete Mina's trial and earn the player a Fairium Z.
An Ace Trainer on the Huntail ship in the southwest will give the player an Aerodactyl, while a female Veteran northeast of the tree in the center of the village will offer to trade the player a Steenee named Stena.
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.
Pokémon Ultra Sun and Ultra Moon
An Ace Trainer on the Huntail ship in the southwest will give the player an Aerodactyl, while a female Veteran northeast part next to Pokémon Center in the village will offer to trade the player a West Sea Shellos named Solle.
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.
In Balloons, Brionne, and Belligerence!, Ash, Lana, and Mallow met two members of the seafolk, named Ida and Kanoa, who travel on a Steelix boat similar to the one seen in the games. Unlike most members of the seafolk, who are peddlers, Kanoa is an underwater treasure hunter, although Ida has to perform with her Brionne in order to get money for their food, since Kanoa hasn't had much luck in finding treasures. Ida agreed to help Lana train her Popplio in order for it to perfect Hydro Vortex. By the end of the episode, Lana's training with Ida allowed her Popplio to master Hydro Vortex, while Kanoa finally succeeded in one of his treasure hunts, finding a Mystic Water, which he gave to Ida.
Seafolk Village itself debuted in That's Some Spicy Island Research!, where Ash, his classmates, and Professor Kukui arrived there by ship to do various personal projects for their Pokémon School class on Poni Island. After Ash had been defeated in a battle by Hapu, he brought Pikachu to be healed at the Pokémon Center. Nurse Joy explained to Ash and his classmates that Hapu was the granddaughter of Poni Island's second-to-last island kahuna, Sofu. She also offered them some Poni radishes. While the girls in the group liked the taste of the vegetables, the boys found them too spicy. Afterwards, each class member headed out to do their own personal project.
In Showdown on Poni Island!, Kiawe was shown training his Pokémon in front of the local Pokémon Center, while Mallow was shown picking out some Berries from a market for a new menu item at Aina's Kitchen.
In Evolving Research!, Lana reunited with Ida, who surprised her by revealing that her Brionne had evolved into Primarina, and agreed to train with her before she and Kanoa would leave the next morning. As such, Lillie and Mallow accompanied Lana and Ida to Poni Beach, while Ash, Kiawe, and Hapu accompanied Sophocles to Vast Poni Canyon to witness him evolving his Charjabug. That evening, everyone gathered for a feast at the village to celebrate the successful evolution of Sophocles's Vikavolt and Ida and Kanoa's departure. As thanks for the feast, Ida showed everyone her Primarina's signature Z-Move, Oceanic Operetta, which impressed Lana so much that she decided to spend the entire night training with Popplio. The next morning, shortly before Ida and Kanoa's departure, Lana demonstrated the results of her training to Ida. During the demonstration, Popplio ended up evolving into Brionne. Impressed by the demonstration, Ida gave Lana a Primarium Z before leaving with Kanoa.
In A Grand Debut!, Ash and his classmates reunited with Professor Kukui at the Seafolk Village port, each of them having succeeded in their personal project, before heading back towards Melemele Island on a boat. Unbeknownst to them, a group of Meltan had also snuck aboard.
Seafolk Village first appeared in Thieving and Boss Crabominable. Sun arrived there while chasing a pair of wild Crabrawler that had stolen a Mirage Berry from him. After chasing the thieves down to the village, he arrived at a large Steelix-shaped boat the Crabrawler were using as a hideout. Inside the boat was a large gang of Crabrawler led by a Crabominable that attacked Sun when he tried to take the Mirage Berry back. Shortly after, Sun was rescued by Hapu, who fought off the Crabrawler mob with her Mudsdale.
Once Hapu succeeded in defeating the Crabominable and its gang, she received a Sparkling Stone from Tapu Fini, signifying that it had accepted her as the next kahuna of Poni Island.
He is also the only Sightseer in Generation VII who does not use a Kantonian form of a Pokémon that has an Alolan Form. Instead, he uses a Pokémon that evolves into a Pokémon that has an Alolan Form.