Today we saw a red poison dart frog, a green-and-black poison frog, a spider monkey and our first crocodile. Not to mention that we slept in hammocks on a bamboo island created by river debris around the remains of a stern wheeler once wrecked in the rapids. So, let’s begin… The day opened wet and rainy. It was rainy season after all. Lightening though could force us off the river. But we needn’t have worried. We only had eight miles to paddle and we’d be spending two hours hiking in the jungle. Juan Alberto Aguilar Gomez was in the stern …