Hidden Realms showcases in photographs 100 of the most out-standing caves, potholes and mines across the UK and Ireland.
One of the world’s most respected cavers, Martyn Farr has been at the forefront of cave exploration in the UK for decades. He combines his experience and passion for caving to present his favourite subterranean sites – the best of the best in the UK and Ireland. This illustrated talk is an explorer’s-eye view of the most secret and wild places in the British Isles.