tourists explore basalt formations at giant's causeway amid mist, green hills, fog shrouded cliffs

ancient atlantic basalt basaltic causeway cliffs cloudy coast coastal columns dramatic erosion europe famous fog foggy formation geological geology giants heritage hills historical horizon iconic ireland irish landscape mist misty nature northern ocean outdoor peaceful rocks rugged scenic sea seaside shore shoreline stone tidal tourists tranquil travel unesco weathering wild morning giant#39aph39#s where explore formations against backdrop green shrouded amid fog-shrouded