Science, Maths & Technology
Fermanagh: The backdrop to the G8 summit
...public as a show cave with impressive stalactites and stalagmites and an underground lake. Other caves are only accessible with specialist equipment and experience, though guided access is available. On the surface, streams emerge and abruptly disappear underground into swallow holes. Their valleys, formed when the ground was frozen during the last Ice Age (30,000 to...