Breeding colonies are located on remote islands, atolls and cays. There are miles of coral reefs on Staniel Cay and neighbouring islands and Cays. The corals could then overgrow the hills, forming cays and reefs. Staniel Cay is located near the center of Exuma Cays. The corals could then overgrow the submerged hills, to form the present cays and reefs. There may be coral islands or cays on the rim. Nicaragua also possesses a series of islands and cays located in the Caribbean Sea. Staniel Cay is an island located in The Exuma Cays, a district of The Bahamas. Three small cays and two rocks emerge above the water to form the bank's islands. More than 100 fishermen were stranded in outlying Pedro Cays off Jamaica's southern coast. All of the islands in the group support vegetation except on their small cays. Ragged Island is part of the Jumentos Cays and Ragged Island Chain. The main settlement is called The Cay, an abbreviation of Lower Cays, the original name. Additionally, giant stromatolites are found off the Exuma Cays. Boat travel from Nassau to the Northern Exuma Cays is approximately one hour.