People relax at Avencas beach in Sao Pedro do Estoril near Lisbon, Portugal, Europe

avencas beach lisbon portugal europe summer beachgoers relaxation sunbathing swimming wading rocky shoreline clear water coastal scenery outdoor activities seaside hot weather vacation leisure people ocean cliffs family friends sun fun tourism travel scenic nature warm day beach activities waves sand tide pools marine life sun hats towels umbrellas kids playing landscape seaside town sunny adventure happiness moments exploration tranquility beach lifestyle azure water beauty