TYBA ONLINE :: Subject: Mouth of Parnaiba River - Parnaiba Delta - Natural boundary between Maranhao and Piaui states / Place: Ilha Grande city - Piaui state (PI)

[+] beach, [+] littoral, [+] Delta of Parnaiba, [+] sea, [+] Parnaiba River, [+] tourism, [+] sand, [+] dune, [+] waterfront, [+] green area, [+] coast, [+] seaside, [+] boundary, [+] river, [+] Canarias Bay, [+] high tide, [+] border, [+] natural boundary, [+] Delta, [+] Northeast Region, [+] landscape, [+] nature, [+] Piaui, [+] landform