Karen and Dan Parker have been regularly running and walking in the Lake District fells for the last thirty years and have been keen orienteers for the last forty years. Karen is the current British age-group champion and a former international orienteer, and in his twenties and thirties Dan has ran the elite class in many mountain marathons, winning the LAMM elite course in 1996. They also design mountain marathon courses and had a hand in creating the most efficient Wainwrights route which Steve Birkinshaw used to great effect in 2014 when he broke Joss Naylor's long-standing record. Karen and Dan have both done the renowned Bob Graham Round, visiting forty-two fells in the Lake District in under twenty-four hours, and they have also completed all of the Munros in Scotland. Karen has also completed the sixty-seven-kilometre Joss Naylor Challenge. They live in the Lowther Valley near Penrith.