The ocean bed is a world of its own, with multicolored fish and other creatures, coral reefs and sea weeds giving it a unique beauty.
However, human activity is posing a grave threat to its very existence.
There are many lovers of nature who are committed to do their part in conserving this threatened natural habitat.
A student of Ocean University, Tharushi Dissanayake, is one of them.
(BBC News Sinhala)
