Trail information comes from OpenStreetMap and may be incomplete or outdated. Verify conditions before heading out. Safety tips →
Difficulty Moderate
Distance 2.4 km
Elevation gain 135 m
Elevation loss 201 m
Loop trail No
Description
The East tunel, known also as Túnel Negro is a former railroad tunnel in the Terranova neighborhood of Quebradillas, near PR-2 and the Guajataca Overlook. It was built in the early 20th century by the American Railroad Company of Porto Rico as part of the rail line connecting San Juan and Ponce. Due to its length and curve, the far end cannot be seen from the entrance, which gives the tunnel its name.
The trail follows the Guajataca River valley and passes the remains of an old bridge before reaching the tunnel. A flashlight is recommended, since the inside is completely dark.
Más informaciónMap
Elevation profile
Last verified: Not yet verified by a maintainer
Source: OpenStreetMap · Last edited on OSM: July 16, 2026