Undersea well Croatia

Undersea well Croatia is Natural Phenomenon in karst area and appears along coast of Adriatic sea, under bottom of large mountains and on islands. Undersea well is fresh water spring on sea bottom, which has arisen by flooding of speleological water Spring by Adriatic Sea after ice age. This Natural Phenomenon is arisen by flowing out of Fresh Water through underground canals into Adriatic sea, as stream from water accumulation from atmospheric rainfalls, or as underground river. Arround well zone, cooler sea and branchish water is creating. Because of preasure in those underground canals, sea cann't enter this watercourse system. Undersea Well Croatia can be permanent and temporary, depending on quantity of water and its preasure to provide Spring under sea. Permanent undersea wells are appearing Along Coast and on bottom of large mountains, while temporary ones are appearing Along Coast of islands and peninsulas. Undersea wells near town Brela on Makarska riviera are most probably underground karst river Cetina streams, so they appear as permanent Fresh Water springs in ten larger or smaller undersea wells, on sea debth of 10 – 20 metres. By underground streams river cann't reach coast of islands, so they appear only as temporary undersea wells Croatia, which have arisen by accumulation of atmospheric rainfalls in underground karst caves. When water disappear, Undersea Well dries up.