Chislehurst Caves

Trog-O Chislehurst Caves

(This article was written by Ian Gilliver and is reproduced from Issue 56 of Lokation, the London Orienteering Klubb newsletter.) LOK achieved a world first at Chislehurst Caves on the evening of Saturday 19 September 1987: the world’s first day-time night orienteering event, or more simply, the world’s first underground orienteering event. One hundred and one competitors accepted this unique navigational challenge and some twenty more pursued the less taxing wayfarers course.