Land boundaries: 0 km
Coastline: 138.9 km
Maritime claims: contiguous zone: 12 NM
exclusive fishing zone: 200 NM
territorial sea: 3 NM
Climate: tropical; heat and humidity moderated by trade winds
Terrain: steep cliffs along coast rise abruptly to central plateau
Elevation extremes: lowest point: Indian Ocean 0 m
highest point: Murray Hill 361 m
Natural resources: phosphate