Getting there & away
The village of Caño Negro and the entrance to the park lie on the rough road connecting Upala and Los Chiles, which is passable to all cars during the dry season. However, this road is frequently washed out during the rainy season, and a 4WD is usually required. Two buses daily run past the park entrance from both Upala and Los Chiles.
During the rainy season and much of the dry season, you can also catch a boat here from either Los Chiles or Puerto Viejo de Sarapiquí. This is becoming increasingly popular, especially as more and more travelers are exploring the Río San Juan and crossing into Nicaragua.