As of now, there will be 4 kinds of ISLAND DAO, which are:

SOMA ISLAND, the fertile island which will be the main DAO for "planting" activities
MARULA ISLAND, the land of the wild and mythical beasts which will be the main DAO for "animal breeding" activities
VARUNA ISLAND, the home to the sea beasts which will be the main DAO for "fishing" activities
PARVATA ISLAND, the towering volcanoes which will be the main DAO for "mining" activities