hollowed-out limestone arch, s`archittu di santa caterina, sardinia, italy

arch attractions beach beautiful boats calm captured caterina chalk cliff coast coastal coastline columns curve destination dramatic ecotourism eroded erosion escursionista geological geology giant heritage holiday hollowedout horizon impressive italy journey landmark landscape limestone mare movement national nature ocean opening oristano peace peaceful pittinuri province remarkable rock rocks romantic santa sarchittu sardegna sardinia scenery scenic seascape seaside serene shore shoreline spectacular splash stretch stunning sunset tourism tracks travel vacation view water world