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Peter Laurenson is a keen tramper, climber and photographer who has spent three decades maintaining a special connection with the Khumbu region - the gateway to Mount Everest.
He first visited the region in 1988 and has returned six times since, having forged a strong friendship with teahouse owners Pasang D and Nima Sherpa and their children.
It was at their urging that he brought his eldest son Ben to Khumbu when he was 15, a journey which became a family rite of passage for his other two sons, Ed and Will, when they attained the same age.
Peter's documented his three journeys with his sons, as well as the history of the region and his stunning photography in a new book: Khumbu: Gateway to Mount Everest, Pathways to Kinship.