Yet it has a diversity of geographical features that makes the landscape always interesting to look at. Basically, the island is made up of undulating uplands varying in height from 300 metres to a maximum of 600 metres in the south. Surrounding the uplands are mountain ranges and plains.
Numerous rivers flow to the sea fed entirely by rain fall.
Last but not least, stretches of coral sand beaches are found along part of the coast line. Except for beaches and coral reef formation, the island is entirely of volcanic origin. Three major periods of volcanic activity resulted in the formation of the island. The first period, called the Emergence and Older Series or the Ancient Series, lasted from 10 million years ago to about 5 million years ago. This period caused the emergence of the island.