Giant's Causeway is a natural wonder of the world, composed of 40 000 basalt columns, hexagonal rocks that jut out like footsteps or large thrones. The Irish say that the Giant Finn MacCool escaped across these stepping stones to harbour in this area. The site gained prominence after the Bishop of Londonderry visited them in the late 17th century and brought awareness to the greater world. Today there are thousands of visitors to this natural marvel. Once at the causeway, there are many hiking paths and beautiful views out across the cliffs to the sea. The misty atmosphere produces many rainbows.http://www.causewaycoastalroute.com/index.php?option=com_content&view=article&id=68&Itemid=61<ref>

The Causeway is on the coast in County Antrim, accessible by bus and car and is open year round, 24 hours a day. The spring, summer and fall are popular times to visit as it is still possible to hike the 1km walkway down to the columns. Along the site there are small placards explaining the significance of the geographic formations. There is a small fee for parking. If you park a car during opening hours you will be charge £6 for all day parking. Coaches are £20, Minibuses and RV's are £7.50. Parking around the Causeway is monitored and tickets are issued during peak periods, so it is advisable to park either in a recognised car park or well away from the access road. A Park and Ride will be operating from Bushmills Dunderave Car Park from 2010. A mini-bus operates a continuous shuttle throughout the season to take you up and down to the causeway for a return fare of £2 for an adult and £1 for a child.http://www.causewaycoastalroute.com/index.php?option=com_content&view=article&id=68&Itemid=61<ref>

There is also a giftshop and tea room to purchase refreshments. To reach the causeway, you could take a car or bus north from Belfast. The closest airport is Belfast International Airport.