layered basalt and red rock cliff at giant's causeway with columns lush greenery blue sky

atlantic basalt basaltic causeway cliffs cliffside clouds coast columns dramatic erosion famous formation geological geology giants grass green heritage iconic ireland landmark landscape layers natural nature northern outdoors red rock rugged scenic sharp sky steep summer tidal tourism towering travel unique vertical volcanic wild striking cliff face giant#39aph39#s showcasing layered tall stand out against lush greenery blue