The Royal Unova (Japanese: ロイヤルイッシュ号Royal Isshu) is a ferry that sails in the Unova region. The ships sets sail every day from Castelia City. The time it sails depends on the season. It can be traveled on after obtaining the National Pokédex.
Taking a ride on the ship costs 1000. The ship leaves Castelia City and journeys up Unova's eastern river, passing the Skyarrow Bridge as it leaves Castelia City. It then travels up the river to the Marvelous Bridge before turning around and heading back to Castelia City. The boat features a deck allowing the player to view the sites as the ship travels. The ship also contains various Trainers for the player to battle. The ride also implements a time limit in the form of the ship's whistle.
The Royal Unova can sometimes be seen passing underneath the Skyarrow Bridge while the player crosses the bridge.