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

agia marina beach turquoise water petrified forest agios nikolaos geopark south greece nature coastline rocky shoreline serene clear sky geological formations vacation travel tourism outdoor landscape sunny relaxation summer marine aquatic explore scenic paradise natural beauty hideaway adventure tranquility views sandy shore crystal waterfront leisure cliffs environment flora fauna unique