Cannonball Run is a hidden island in the Arc region of the Wushanko Isles. Travelling to the island requires finding a message in a bottle southern shore of Cyclosis, which can be investigated to receive a treasure map.
The message in a bottle to locate this island was last visible 3 days ago on 13 August. It will be visible again in 3 days on 19 August. (wrong?) Once a message in a bottle is found and when a player has walked near its spawn location when it was visible it will always be visible, unless the message in the bottle or its treasure map is in the player's bank or inventory.
While carrying the map in the inventory, players can talk to Quartermaster Gully and will be asked if they agree to travel to the uncharted isle.
- The name is most likely a reference to the 1981 film The Cannonball Run.