Waterfall of Peñaladros

Waterfall of Peñaladros is a hidden natural gem in Valle de Mena, in the northern part of Burgos province, close to the border between Castile and León and the Basque Country. Fed by the San Miguel River, the cascade drops around 13 meters into a pool with a striking emerald-green color, tucked into the dense woodland of the Angulo Valley.

How do you get there?

The waterfall sits in the northern reaches of the province, near the Peña Angulo mountain pass, along the route heading toward Bilbao. The starting point is the small village of Cozuela, from which the falls are only about 500 meters away. The path branches off to the left of the road just past the village and drops down into the valley. The full round trip covers roughly 2.6 miles (about 4.2 km) and takes an average of a little over an hour to walk. The terrain is moderately demanding, with some elevation gain, but it doesn't require special fitness or gear beyond a solid pair of walking shoes.

What will you see there?

The main draw is the waterfall itself: a stream of water plunging from a rocky ledge roughly 13 meters high straight into a natural pool with a distinctly green, almost emerald tint. That color comes from the surroundings — thick forest and lush vegetation wrap tightly around the rock basin and limit how much sunlight reaches the water. The San Miguel River, which feeds the cascade, flows year-round, so the spot keeps its character in every season, even though the volume and look of the falls shift noticeably with rainfall. The Angulo Valley around the waterfall stands out for its wild, largely untouched landscape, which is part of why this spot is often described as a hidden corner of northern Burgos despite being relatively easy to reach.

When is the best time to visit?

Because the waterfall carries water all year, it can be visited in any season, though the most dramatic view — full flow and a powerful cascade — usually comes in autumn, winter, and early spring, when river levels in the region run higher. In summer, during dry spells, the flow tends to be more modest, though the pool still keeps its signature green hue. It's worth planning a visit for the morning or early afternoon, when light filters better through the tree canopy, making the falls easier to appreciate and photograph.

Frequently Asked Questions

How long does it take to reach the Peñaladros waterfall? The round trip from Cozuela to the waterfall and back takes about an hour on average, depending on walking pace and trail conditions.

Is the trail suitable for families with children? The route is considered moderate — it isn't long or technically difficult, but it does involve some elevation gain, so it's worth judging younger walkers' stamina before setting off.

Where does the waterfall's water come from? The cascade is fed by the San Miguel River, which flows through the Angulo Valley in the northern part of Burgos province.

Does the waterfall flow all year round? Yes, it flows year-round, though its intensity depends on rainfall — the most impressive views come in the autumn, winter, and early spring months.