Porto Katsiki beach with turquoise water on a cloudy day, Lefkada island, Ionian Islands, Greek Islands, Greece

porto katsiki beach lefkada greece turquoise water ionian islands cliffs cloudy sky waves sandy shore travel nature seascape summer coastline tourism scenery adventure relaxation outdoor island beautiful landscape aquatic peaceful horizon marine vacation explore serenity retreat activity environment weather geological mediterranean sea blue sight tranquility scenic view holiday leisure escape