An archipelago.
Groups of islands are called "archipelagoes", for example, the Galapagos islands.
A chain of islands clustered together in a sea or ocean is called an archipelago.
An 'archipelago' means 'a large group of islands'
A chain, string or group of islands is called an archipelago.
It's called an archipelago.
Yes, the Hawaiian Islands are properly called an Archipelago.
A chain or cluster of islands is called an archipelago.
A group of islands is called an archipelago.
A series of islands is called an archipelago.
A group of islands is called an archipelago.
A group of islands is called an archipelago.