The Giants Causeway is probably the visitor attraction that most people visiting Northern Ireland have heard of. It is well sign-posted (from pretty much everywhere!) and has ample visitor parking. There is a tea shop which serves drinks and light refreshments and a gift shop with the inevitable postcards, pencils and other tourist grot that people are persuaded to part with money for!

There is quite a walk down to the causeway itself although a minibus will take you most of the way if you find walking arduous. On the way down you pass basalt columns that hint at what you will find at the bottom.

The six-sided columns of basalt spring out of the sea and are battered by the waves constantly, which shows just how hard these volcanic rocks are. Parts of the structure are safe to climb on with care, and the braver/more foolhardy can venture further out, although I'd recommend caution as they can be hard to get around on.

If you take the Causeway coast walk you can follow a path along the coast, seeing more of the natural formations. It's not for the fainthearted though - some parts are quite narrow, and although it is fenced and there are ropes and handrails in places to help you, it can be a little precarious for those of us with an anxiety about heights. Some walkers try to take bikes along the walk too, which can be awkward when they are coming the other way and you have to get past them.

If you have children then the part of the Causeway near the Causeway visitor centre is fine, if you keep an eye on them. I'm not sure I'd try the coastal walk with them, though, and don't even think about it if they need a buggy!

If you are ever in Scotland, then Fingal's Cave in Staffa is well worth a visit - the other end of the Causeway and arguably even more spectacular.