In Animal Crossing
In Animal Crossing, the dock is located at the south of the town, on the ocean. The dock will be empty and useless, until the player connects a Game Boy Advance to the GameCube via a Nintendo GameCube Game Boy Advance Cable. Once done, Kapp'n will appear at the dock on a small rowboat, and will offer the player a free boat ride to the island.
After paying off the 39,800 Bell mortgage to Tom Nook, 2 days later, the player can access Tortimer Island by meeting Kapp'n at the town's dock, similar to Animal Crossing. Unlike the previous game, however, Kapp'n can now carry up to four players to the island at once, and also charges 1,000 bells for the service. A basket on the dock will allow the player to retrieve up to 40 items that they have collected on the island.