There are many NPCs you can visit and invite to join your Animal Crossing: New Horizons island. Many of them have different personalities which provide a great variety for your island. Harvey is a returning character that you can find and he has his own island that you can visit to access new game features.
Harvey appears randomly on your beach after a few days of playing. You may notice him on the fourth, or so. When he introduces himself, run over to talk to him, and he tells you about the private island that you can visit that is far away. The private island is easily accessible. All you have to do is show up at Dodo Airport at the front of the island and request to travel, making his island the destination.
When you visit his island, you will now have access to a photoshoot where you can bring models and take a photo in front of that area. You can also use Amiibos and use them freely in the photoshoot for Animal Crossing. You can access it by pressing the directional button down on your controller and showing the maps. Few Amiibos options are available. Those who show up for the photo shoot are mostly villagers. Any Amiibo you can bring into the photoshoot can allow you to dress them up, but players have noted that they can't do this for Isabelle.
Due to the limited amount of creativity in Harvey's Hut, we'll likely see future updates for this section. Nintendo could make more Amiibo cards available for the photo shoot, or make them work differently. Anyway, after you're done taking photos and heading back to the island, Harvey calls you about the posters now available at Dodo Airport. You can buy unique posters with the maps you use, which you can use to decorate your island.
