The all-female trio with a few local Wai Wai, have now traveled through a significant portion of the yet untraveled river. There had been a slow-moving, serene and beautiful section and a section with 60 miles of rapids. The upriver portion of this is home to indigenous hunter tribes with no connection to the outside world. They have encountered emerald boas, crocodiles, jaguars and exotic birds. But they have been stymied by trench foot (from waterlogged feet), while mosquito larvae, other mysterious worms and mysterious infections bore into their skin. There are a wealth of photos this segment to tell their story.