Giant’s Causeway (UK access via Northern Ireland)

#summervacay Though technically in Northern Ireland, the Giant’s Causeway is part of the UK and a top-tier #summervacay spot for nature lovers. Its 40,000 interlocking basalt columns, formed by ancient volcanic activity, look almost otherworldly. Summer is the ideal time to explore—clear skies, lush greenery, and cooler breezes off the Atlantic make the landscape shine. You can hike the surrounding cliffs, learn the myths of Finn McCool at the visitor centre, and even dip your toes in the sea. It’s a must-see natural wonder with geological and legendary appeal.