Petrified forest, Agia Marina, Agios Nikolaos Geopark, beach with turquoise water in the south of Greece, Greece

petrified forest agia marina beach turquoise water agios nikolaos geopark greece southern natural beauty coastal landscape cliffs serene escape nature outdoor relaxation picturesque scenic travel tourism adventure geology marine life hiking sunlight clear rocks summer lovers pristine vacation holiday discovery tranquil local flora seascape view azure environment sustainable untouched dramatic