Isle AbeenBy leveling up Isle Abeen you produce beans. These are used to level up the other islands, so this should be the first island you upgrade. You will also have a chance to catch wild Pokémon on this island.
To get beans, click on the tree in the middle of the island.
Isle AplennyThis island allows you to plant and harvest various berries. Each berry takes between 24 and 72 hours to grow (real-life time).
Rank 1: 6 Berries
Rank 2: 12 Berries
Rank 3: 18 Berries