praia dos tres castelos in south portugal, portimao, algarve region. landscape with atlantic ocean, shore and rocks in tres

algarve atlantic beach beautiful beauty blue castelos cloudy coast coastal coastline day destination destinations dos europe formation holiday landmark landscape limestone maritime mountain nature ocean orange out outdoor portimao portugal portuguese praia rock sand sandstone scenic sea seascape seaside shore shoreline sky spectacular summer tourism travel tres trip turquoise vacation vacations view water