Villa On Dunbar Rock, Bay Islands, Guanaja, Honduras, Carribbean Sea

Roatan is the largest with a length of about 60 kilometres (40 mi) and a maximum width of 14 kilometres (9 mi) at its widest point. Roatán, is characterized by its mountainous backbone, composed of hilltops that run west-to-east across the entire island. These hilltops are often crowned by outcrops of exposed metamorphic rocks such as marble, amphibolite, and serpentine.
Flat, level areas are scarce throughout the central ridge of the island, and occur mainly along the coasts, though these are also limited in size. The island's southern coast has an abundance of deep ports and wide inlets, or 'bights', protected by reefs, while its northern coast is, save for a few narrow passages, largely inaccessible due to extensive coral reef growth.
The island of St. Helene has been described as a virtual extension of Roatán, since it is separated only by a long stretch of mangrove swamp. This island has a small elevated hill at its center, but is characterized by a large number of caves, most of which are located along a cliff on its western end.
Guanaja is the second largest and is even more mountainous than Roatan. "Guanaja presents a mixture of thetopographic and geologic features that characterize the two other large islands. This island is roughly divided into three sections by a series of hilltops, the highest of which rises to over 350 m above sea level, the highest elevation of the Bay Islands. These hilltops include important deposits of granite, marble, and serpentine." "In between these hills are moderately-sized alluvial plains that cut across these deposits, which have been densely populated since prehistory."