Ria de Aveiro, Sunrise at Torreira, Portugal

The ria is the result of the retreat of the sea, with the formation of coastal ridges that, from the 16th century onwards, formed a lagoon that constitutes one of the most important and beautiful geographical features on the Portuguese coast.[5] In total, the entire mouth covers eleven thousand hectares, of which six thousand are permanently flooded, it unfolds into four important channels branched into streams that surround numerous islands and islets. The Vouga, Antuã, Boco and Fontão rivers flow into it, with the only communication with the sea being a channel that cuts the coastal line between Barra and São Jacinto, allowing access to the port of Aveiro for vessels with deep drafts.[5] Rich in fish and water birds, it has large areas of water, ideal places for practicing all water sports. Furthermore, although it has been losing, from year to year, the importance it once had in Aveiro's economy, salt production, using ancient techniques, is still one of the most characteristic traditional activities of the city of Aveiro. "source from wikipedia"

Carlos Frazao,   Portugal, Ovar