After thirty minutes on the Arapiuns, we entered the Maró river. Each new river gets tighter with thicker vegetation on each side. The current gets stronger and the river winds around like a snake in the jungle. At this point, we are over 10 hours away from Santarém by any normal boat. The villages are few and far between. There is little if no local infrastructure. No electricity, no roads. Just generators and very simple living.