Despite the huge numbers of turtles and the remoteness of the Guaporé, the Amazon’s biggest conservation issue was never far away. Matt and Darren could smell and see smoke every day – the result of the forest burning. It produced something of a paradox for the filming. The haze from the fires veiled the sun, creating a soft, filmic light. Cameraman Matt couldn’t help being pleased with this aesthetic but, as he said, ‘There’s something shocking about this story hidden in the pictures.’