A naturally formed area of land, surrounded by seawater within 3 nautical miles from the coastline, which is above water at high tide.

A naturally formed area of land, surrounded by inland water, which is above water at high tide.

Open earth/concrete channel that transport irrigation water from the source to other locations transversing topographic features along the way.

A natural exit of water from the ground

A fast flowing section of a watercourse generally with exposed rocks or boulders.

A sudden, vertical or near vertical descent of water over a step or ledge in the bed of a river.

The edge of a relatively large natural stream of water.

A relatively large natural stream of water.

Body of water, either natural or artificial, used for storage regulation and control of water resources

A large inland body of water entirely surrounded by land either naturally formed or man made.