The island is famous for its Berry trees and produce. It features many sweeping green hills and has a township close to its shipping dock. The island is also known for the Grand Harvest Festival, a celebration of its history, which includes a Pokémon Sumo Tournament.
While on Harvest Island, the group met Alexa, a journalist from the Kalosregion. Before the Pokémon Sumo Tournament, Ash met another Trainer named Rodney, who he quickly became rivals with after they bumped into each other. In the end, Ash became the Pokémon Sumo Tournament's winner.