Located in the indigenous Ticuna village of San Martín de Amacayacu within Amacayacu National Park, the Ticuna people make up the staff of the Yoi Ecolodge. The simple thatched-roof cabins have private bathrooms and mosquito nets. There’s some electricity to charge batteries, but that’s it. Tours include bird-watching, visits to Lago Tarapoto, piranha fishing, jungle hikes, night walks, and visits to a monkey sanctuary.