“Halt, stop right there,” shouts a Peruvian Navy Seal, firing warning shots into the air. But the fleeing man pays no attention, scrambling up to the rim of a football pitch-sized crater and disappearing into the dense rainforest as the commandos give chase, swearing and shooting.
Meanwhile, other marines set dynamite charges on a makeshift wooden raft that floats in the crater, which is essentially an enormous pit of opaque, stagnant water. The raft has a diesel-fuelled suction pump motor with thick plastic tubing used to suck up and sift through river sediment for tiny particles of gold.
