Sierra Negra Sulfur Mines Trail

Discover one of Isabela’s most surreal volcanic landscapes on this guided hike to the Sulphur Mines, located near the Sierra Negra Volcano. The tour begins with an approximately 11 km (6.8 miles) drive up to the viewpoint area. From there, you’ll hike 2 km (1.2 miles) down into the crater, where you’ll explore active sulphur vents, vibrant yellow terrain, and steamy fumaroles. After exploring, you’ll hike 2 km (1.2 miles) back up to the vehicle.
A unique adventure through dramatic volcanic scenery—ideal for nature lovers and geology enthusiasts.