 The Lagoon stretches between the Eraclea's Lido and the mouth of the Piave river and it is a sea-lagoon, being supplied with water only by the flood-tides.Still uncontaminated, the Mort is characterized by shallow and calm waters with a sandy and muddy seabed, rich in phytoplankton.The city's economy is mostly based on agriculture and tourism, because of its 6 km-long beach (Eracleamare).