I'm packing up for my 50K Causeway Crossing running race in northern Ireland on May 4th. The route zigzags along the Antrim Coast and Giant's Causeway. I hear the basalt columns, crumbling stone castles and ancient bridges are facinating! www.lostworldsracing.com/causeway-crossing-2013-2nd-edition/ More on my adventure when I return to NYC. Cheers!