The Foz de Lumbier and Foz de Arbayún are two limestone gorges in Navarre carved by the Irati and Salazar rivers respectively. Both are classified as Natural Reserves and rank among the most important griffon and Egyptian vulture habitats on the Iberian Peninsula. Together, they offer some of Navarre's most dramatic natural scenery within a 25–75 km radius of Pamplona.
The Foz de Lumbier, 24 km from Pamplona via the NA-150, is the more accessible gorge. An abandoned railway tunnel serves as the main walking trail, entering the gorge at the edge of Lumbier village and emerging into an open canyon where the Irati river has cut through 100 metres of grey limestone. The flat, wide path is navigable by pushchairs and most mobility levels for its main length. Griffon vultures nest on the cliff faces in large colonies, visible year-round and especially active February–May during the breeding season. The full gorge circuit — entering by tunnel and returning via a high-level loop — covers 4 km and takes 1.5–2 hours. The Conda bus from Pamplona (approximately 40 minutes, around €4) stops at Lumbier village.
The Foz de Arbayún, 75 km from Pamplona in the Valle de Salazar, is deeper and far less visited. The gorge drops 300 metres to the Salazar river and stretches for 6 km through undisturbed limestone habitat. Walking inside the gorge itself is restricted to protect nesting birds; the principal viewpoint is the Mirador de Iso on the NA-178, where roadside platforms overlook the canyon from altitude. Egyptian vultures are the emblematic species here, alongside griffon vultures, kestrels, and occasional golden eagles. The drive from Lumbier to Arbayún takes 30–35 minutes.
Combining both gorges in a single day is straightforward with a hire car: walk Lumbier in the morning (1.5–2 hours), drive to the Arbayún viewpoints (40 minutes), and continue to Ochagavía for lunch before returning to Pamplona. Visitors without a car can take the Conda bus to Lumbier and spend a rewarding half-day at the more walkable of the two gorges. Entry to both is free.
How to get there
- Car
- Bus to Lumbier only (Conda)
Location
Foz de Lumbier entrance, 31440 Lumbier, Navarre
42.6600, -1.3019 View on map
Highlights
- Foz de Lumbier: flat gorge walk through a converted railway tunnel accessible to most fitness levels
- Griffon vulture colonies nesting on Lumbier's limestone cliff faces — among the largest breeding groups in Navarre
- Mirador de Iso at Foz de Arbayún: dramatic aerial viewpoints over a 300-metre deep canyon on the NA-178
- Egyptian vultures at Arbayún — a rare sighting increasingly uncommon across their European range
- Free entry to both gorges; easily combined into a single full-day circuit by car
Tips for visiting
- Lumbier gorge is reachable by Conda bus from Pamplona (~40 min, ~€4); Arbayún requires a car
- Bring binoculars — vultures soar close to cliff tops at Lumbier but are distant from the Arbayún roadside viewpoints
- The gorge path at Lumbier can be wet underfoot after rain and inside the tunnel; waterproof footwear is useful
- Best griffon vulture activity at Lumbier is mid-morning (9–11 AM) when thermals lift the birds to eye level
- No booking or admission is required at either gorge
When to visit
April–June for peak vulture activity and spring wildflowers along the canyon margins; September–October for dramatic angled light and autumn colour. Lumbier gorge is accessible and enjoyable year-round.
Frequently asked questions
Can the gorges be visited without a car?
The Foz de Lumbier is reachable by Conda bus from Pamplona (approximately 40 minutes, around €4). The Foz de Arbayún has no public transport access; a car is essential. Visitors using the bus can spend a full and rewarding half-day at Lumbier, which is the more walkable of the two gorges.
What wildlife can be seen in the gorges?
Griffon vultures are resident year-round at Lumbier and nest on the cliff faces in large colonies. Egyptian vultures, kestrels, and occasional golden eagles are present at Arbayún. Both gorges support otters and kingfishers along the river margins.
Is the Foz de Lumbier walk suitable for children and pushchairs?
The main trail through the railway tunnel and along the riverbed at Lumbier is flat, wide, and surfaced for most of its length, making it suitable for children and most pushchairs under normal dry conditions. The high-level return loop is rougher and better suited to older children and adults with reasonable footwear.
When are the vultures most active in the gorges?
Griffon vultures are present year-round but most visible February–May during breeding season, when they soar on thermals close to the cliff tops. The best daily window is mid-morning (9–11 AM). Egyptian vultures at Arbayún are summer visitors, present April–September.