Serra da Estrela landscape lagoons route, in Portugal

serra da estrela panoramic panorama landscape estrela covao vegetation gouveia environment view covao do curral hiking guarda mountain scene lagoa comprida serra lagoa do covao do curral lagoa do covao do forno portugal covao do forno curral lagoon park seia nature background scenic reservoir lagoa outdoors outdoor stone comprida tourism travel da water european europe lake natural beautiful summer national calm clear pure blue