Las Bocas Canyon (Spanish: Cañón Las Bocas) is a steep gorge carved by the Frío River, located on the town boundary between the municipalities of Barranquitas and Comerío in the central region of the main island of Puerto Rico.
[1][2] Las Bocas, along with San Cristóbal Canyon, its larger neighbor to its immediate south, form part of the La Plata River basin.
[2] Organizations such as Sierra Club often offer guided hiking tours into the canyon.
[3] In addition to the famous ceibas, the plant population of the canyon includes those common in both primary and secondary forests of the Cordillera Central such as the moca (Andira inermis), bucayo (Erythrina fusca), yagrumo macho (Didymopanax morototoni) and yagrumo hembra (Cecropia peltata).
The area is considered a "natural aviary" due to its high diversity of birds, and it also contains one of the highest population densities of the Puerto Rican boa (Chilabothrus inornatus), particularly along the area of Piedra Blanca and the steeper cliffs of the canyon where they feed on bats and smaller reptiles.