Berry Islands, Great Harbour Cay, Bahamas Travel and Tourism. Discover The Berry Islands. Miles of secluded swim-ashore beaches, invigorating dive sites, and championship sport fishing are just a few of the highlights that make The Berry Islands a desired destination. Composed of a cluster of 30 cays, a majority of these islands are uninhabited. It's not uncommon to stumble across a footprint-free beach or private cove. You could spend an entire day without seeing a single soul. The Berry Islands are also home to a number of cavern, reef, wall and wreck dive sites, as well as a 600-foot-wide blue hole, wonderful billfishing, and ancient churches.Holiday, Vacation Honeymoon, All-in One location for Leisure.