Actually, that code I shared is to be friends through the whole Nintendo network.
If you have friends, you can visit each other.
Well, I learned about Dodo codes, and that's how you can travel to other players' islands.
Let's trade codes!!!
I'm thinking of keeping my physical copy sealed and then getting the digital copy on iTunes... Sell it later for hopefully a higher price (not gouging, hopefully it, and the game, will go up in value.)