coastlines & tan lines

Thought we’d start the day with a cool picture and a fun fact about out marine world.  This is a picture of the “Underwater waterfall” of Le Morne Brabant peninsula, Island of Mauritius.  

This one is an illusion I believe BUT underwater waterfalls do in fact exist! If there is a difference in densities, such as between warm and cold water (colder being the more dense) the lower, colder, denser water can fall into fissures and depressions.  In fact, some of the largest waterfalls on earth are located underwater!