Green Turtle Cay is an island in The Bahamas. It is located in the "Abaco Out Islands" and is 3 miles (4.8 km) long and 1/2 mile wide. It was named after the abundance of green turtles that inhabited the area. The population of the island is about 450 and its main settlement is New Plymouth which was founded in the 18th century. The architecture of the older homes in the village is unique in the Bahamas, with steep-pitched roofs, originating with settlers from New England.
New Plymouth contains a post office, several restaurants, bars, and churches and there is a museum featuring the paintings of noted Bahamian painter Alton Lowe.