Dunluce Castle on the Antrim Coast in Northern Ireland is about a 40 minute drive from the city of Derry and close to the popular tourist towns of Portstewart and Portrush. Other nearby visitor attractions include the Giant's Causeway and the Bushmills Distillery.
The Giant's Causeway, Ireland: Designated a World Heritage Site by UNESCO in 1986, it is an area of about 40,000 interlocking basalt columns up to 12m tall, the result of an ancient volcanic eruption. The tops of the columns form stepping stones that lead from the cliff foot and disappear under the sea. Most of the columns are hexagonal, although there are also some with four, five, seven or eight sides. Image source unknown.