Overview Although Derek lives outside of the Te Anau Basin, he is one of the few people who met and worked with David Gunn, leaseholder of Martins Bay and the Hollyford Valley which he farmed, mainly as a cattle run. He was also the first tour operator through the valley. This interview focuses on Derek’s early experiences in the Hollyford and while there’s a summary of other key events in Derek’s’ life, they are only lightly touched upon.