With a length of  from north to south, and  at its widest point, the island covers an area of  and is separated from the shore west of it by a shallow lagoon, about  wide, only accessible by boat at high tide, which served in the 13th century as a sheltered anchorage.
This island stretches from north to south, reaching its greatest width at a measurement of  square miles. It is situated off the coast, with a narrow lagoon separating it from the shore west of it, which measures about  miles in width and can only be reached by boat during high tide.