Forty-five minutes from Nice Airport, a trail threads through 22 hand-carved tunnels, follows a crumbling 19th-century aqueduct along cliff faces 200 metres above a river, passes a 65-metre waterfall, and loops back through a quiet mountain village and a Natura 2000 plateau with views from the Mercantour to the Estérel. The Balcons du Loup is one of the most spectacular day hikes on the Côte d’Azur — and almost nobody outside France knows about it.
THE ROUTE | PRACTICAL INFO | BOOK A GUIDE | ACCOMMODATION | FAQ
The Gorges du Loup cuts a deep limestone canyon through the Préalpes d’Azur, between the perfume capital of Grasse and the medieval hill towns of the Riviera hinterland. The Loup river rises near Andon in the Audibergue mountains and runs 50 km south to the Mediterranean at Cagnes-sur-Mer. But it’s the stretch between Gourdon and Pont du Loup where the gorge is at its most dramatic – sheer cliffs dropping into clear green pools, with the perched village of Gourdon, nicknamed the “Nid d’Aigle,” watching from 760 metres above.
The Balcons du Loup circuit (listed as the Circuit du Canal du Loup on the official Randoxygène site) is a full-day loop that takes in the best of the gorge. You start low at Pont du Loup, climb through oak woodland on an old mule track. Then spend two hours traversing the famous balcony section – alternating between dark tunnels and sunlit corniche paths with the gorge yawning beneath your feet. The second half of the circuit crosses the river at Bramafan, climbs to the village of Courmes, traverses the high Courmettes plateau, and descends back to the start.
It’s a serious hike. But the reward-to-effort ratio is extraordinary.
Quick Facts
Distance: 24 km
Elevation gain: +/- 880 m
Max altitude: ~950 m (Plateau des Courmettes)
Min altitude: ~200 m (Pont du Loup)
Duration: 6-7 hours
Difficulty: Challenging day hike
Trail type: Circular loop
Start/Finish: Pont du Loup (free parking at the Mairie)
Waymarking: GR51 (red/white) + PR (yellow)
Map: IGN 3643 ET
Best time: March-June, September-November
Trail Status Update – Balcons du Loup (Sentier du Paradis)
As of February 2026, there is no official closure notice for the section of the Sentier du Paradis between balises 101 and 102, which connects Pont du Loup to the Canal du Foulon on the Balcons du Loup trail.
This section has been subject to temporary closures in previous years due to rockfall and instability near the Canal du Foulon. However, it currently appears as open in the latest departmental hiking listings.
⚠️ Important: Trail conditions in the Gorges du Loup can change rapidly due to weather, rockfall risk, or municipal safety measures. We recommend checking locally before setting out, especially after heavy rain.
For the most up-to-date information, contact:
The Office de Tourisme du Bar-sur-Loup
Chapelle des Sœurs Trinitaires Place de la chapelle, 06620 Le Bar-sur-Loup
Bureau d’Information Touristique
1, Place de la Libération, 06140 Tourrettes-sur-Loup
Why Hike the Balcons du Loup?
The tunnels are unlike anything else on the Riviera
The defining feature of this hike is the two-hour traverse along the Foulon aqueduct – a rusted iron pipe roughly 80 cm in diameter. Built in 1885 to carry water from the mountains near Gréolières to the perfumeries of Grasse. The path alongside the pipe alternates between 22 tunnels punched through the limestone and open corniche sections bolted to the cliff face. Some tunnels are short and straight. Others curve for 50 metres or more, so you can’t see the exit. And, the floor is wet from decades of leaks in the pipe above your head. You walk through them with a headtorch on, water dripping. Then you step out into blinding sunlight with the gorge 200 metres below and the Mediterranean glinting on the horizon. There’s nothing quite like it.
It’s a real hike, 30 minutes from the beach
The Côte d’Azur has plenty of gentle coastal walks. But, the Balcons du Loup is a proper mountain day out that happens to start less than half an hour from the coast. You could swim at the beach in the morning and be walking through alpine-feeling terrain by lunchtime. With 880 metres of cumulative climbing over 24 km, this is a route that demands fitness and rewards it. If you’re looking for something physically engaging between Gorges du Verdon trips or want a break from the coast, this is it.
Riviera history is layered into every section
This isn’t just a nature walk. You’re following infrastructure that tells 150 years of regional history. The Foulon aqueduct (1885) was an engineering feat built to supply water to Grasse’s booming perfume industry. At several points you can see the ruins of a railway viaduct – 310 metres long, 11 arches – built in 1890 for the Train des Pignes line between Nice and Meyrargues. It was blown up by retreating German forces on 24 August 1944. The Chemin du Paradis, the mule track you climb at the start, once connected the hamlet of Pont du Loup to the village of Gourdon above. Every section of the route has a story baked into it.
The Route
Start/Finish: Parking – Gorges du Loup, Pont du Loup (alt. ~200 m). Free parking. Pont du Loup sits on the D2210 in the commune of Gourdon, at the junction where the lower and upper gorges meet.
Section 1: Pont du Loup to the Aqueduc du Foulon
~45 minutes | Steep climb
From the car park, follow the road briefly south then pick up the Chemin du Paradis. This wide stone staircase climbs through holm oak woodland on the sun-facing slope known as l’Estidau. It’s steep from the first step and stays that way, but the path is well-graded and shaded. This old mule track once served as the main connection between Pont du Loup and the village of Gourdon, perched on its cliff 560 metres above.
At waypoint B101, you reach a junction. The Chemin du Paradis continues uphill toward Gourdon, which is a worthwhile detour if you have the legs, but not part of the main circuit. Turn right here and pick up the GR51, which follows the Foulon aqueduct towards Bramafan.
Note: The section of the Chemin du Paradis between waypoints B101 and B102 has been closed in the past due to rockfall risk. Please observe any signs and be aware of the risk even if the trail is open.
Section 2: The Balcons – Aqueduc du Foulon to Bramafan
~2 to 2.5 hours | The star section
This is why you came. For the next 10-12 km, the route follows the Foulon aqueduct along the west flank of the gorge. The trail threads between tunnels and open balcony sections with vertiginous drops to the river below.
The tunnels come in quick succession. Some are barely 10 metres long — a brief dip into darkness. Others curve through the rock for 50 metres or more, the floor uneven and often wet from the leaking pipe overhead. You’ll want a proper headtorch rather than a phone torch; the longer tunnels are pitch black and the floor can be slippery. Watch your head in the lower sections.
Between the tunnels, the corniche paths are the real spectacle. Iron handrails — some intact, some rusted away — line sections where the path is cut into the cliff face with 200 metres of air beneath you. If you’re comfortable with exposure, these are extraordinary. If you’re not good with heights, this is not your hike.
Along the way, you’ll see the Cascade de Courmes on the opposite bank — a 20-metre waterfall also known as “la Pétrifiante” — and the climbing crags of “Pupuce surplomb” with 23 sport routes from 6a to 8c+. Below, the remains of the destroyed railway viaduct are visible in the gorge. Look for the stumps of the original 11 arches among the vegetation.
The section ends as you reach the D3 road near Bramafan. Cross the road and descend to the Pont de Bramafan, a footbridge over the Loup that takes you to the east bank.
Section 3: Bramafan to Courmes
~1 to 1.5 hours | Steady climb through woodland
After the intensity of the balcony section, this stretch feels like a different hike entirely. You cross the bridge, leave the gorge behind, and climb through quiet woodland on the GR51 toward the village of Courmes at 623 metres.
Bramafan is barely a hamlet — the name translates loosely as “cries of hunger,” which gives you a sense of how remote this spot once was. The climb to Courmes is steady rather than steep, passing a lavoir and winding through mixed forest before emerging onto the narrow road that leads into the village.
Courmes is a good place to stop for lunch. It’s a genuinely quiet mountain village — a handful of stone houses, an auberge, and views down the valley toward the gorge you’ve just traversed. If you’ve packed a picnic, the area around the village offers plenty of spots to sit.
Section 4: Courmes to Plateau des Courmettes
~1 hour | Climb through beech forest to open plateau
From above Courmes, the route leaves the GR51 and climbs through beech and pine forest on an old path toward the Domaine des Courmettes — a privately owned estate of several hundred hectares that’s open to the public and classified as a Natura 2000 site.
The landscape changes completely as you emerge onto the plateau at around 880-950 metres. This is open grassland used for sheep grazing, with patou guard dogs protecting the flocks. Keep your distance from the dogs and if you’ve brought your own dog, keep it firmly on a leash — there are also electric fences across some sections.
The Courmettes plateau is the high point of the circuit, both in altitude and in views. On a clear day — and there are a lot of clear days in the Alpes-Maritimes — you can see the Puy de Tourrettes (1,268 m), the Pic de Courmettes (1,248 m), the Cheiron massif to the north, and the entire coastal strip from the Estérel to Nice. Gourdon is visible on its cliff across the gorge, and the radar dome on the Haut Montet catches the light above it.
Section 5: Courmettes to Pont du Loup
~1.5 hours | Road descent back to the start
The final section is the least exciting but straightforward. From the Courmettes plateau, pick up the PR-marked trail heading southwest toward Pont du Loup. The path joins a narrow road that descends through 11 hairpin bends via the hamlet of Les Valettes. It’s tarmac for much of this section, which is hard on the knees after 20 km, but the gradient is manageable and you’re losing altitude quickly.
The road eventually runs parallel to the D2210. A final shortcut trail cuts off the last stretch before you descend some steps and cross back over the Loup to reach the Mairie parking where you started.
Planning Your Hike
Getting There
From Nice (45 minutes): Take the A8 motorway west to the Cagnes-sur-Mer exit. Follow the D6 through La Colle-sur-Loup and into the lower Gorges du Loup, then the D2210 to Pont du Loup.
By bus: Take bus Nº 400 or 09 to Vence, then Nº 511 to Bar-sur-Loup.
From Cannes or Grasse (30 minutes): Take the D2085 to Bar-sur-Loup, then the D2210 north to Pont du Loup.
Parking: Find free parking on the Route de Grasse (D2210) by the bridge in Pont du Loup, right at the trailhead.
When to Go
Spring (March-June) is ideal. Comfortable temperatures in the gorge, wildflowers on the plateau, and the Cascade de Courmes is running at full force from snowmelt. Late April through May is the sweet spot.
Autumn (September-November) is equally good. The heat has broken, the light is golden, crowds are thin, and the beech forests above Courmes turn colour. Early October is excellent.
Summer (July-August) is doable but hot — the gorge acts as a heat trap and the corniche sections bake in the afternoon sun. Start early (before 8am) and carry at least 2 litres of water. The tunnels offer welcome coolness but you’ll sweat on the climbs.
Winter (December-February) is mild at lower elevations — the coast might be 14°C — but the upper sections around Courmettes can be cold, icy, or muddy. The tunnels will be dark by late afternoon. Possible, but check conditions.
What to Bring
A headtorch is not optional. Some tunnels are 50+ metres long, curved, dark, and have uneven wet floors. A phone torch works at a pinch but a proper headtorch frees your hands and is much safer.
Beyond that: hiking shoes/boots (not trail runners – the tunnel floors are wet and the corniche sections are exposed), at least 2 litres of water (more in summer), a picnic lunch (no resupply until Courmes at the halfway point), sun protection for the open sections, and a light layer for the tunnels which stay cool even in summer. Walking poles are useful for the 11-hairpin descent at the end.
Maps & Navigation
The trail follows the GR51 (red and white blazes) for the balcony and Bramafan-to-Courmes sections, then PR routes (yellow blazes) for the Courmettes descent. Waymarking is generally good, though a couple of junctions on the Courmettes plateau need attention.
The best map is the IGN 3643 ET at 1:25,000. GPS tracks are available through the Randoxygène app (free, from the Alpes-Maritimes département) — search for “Circuit du Canal du Loup.”
What to See and Do Nearby
Gourdon sits on a cliff 760 metres above Pont du Loup and is listed among the Plus Beaux Villages de France. The château has gardens attributed to Le Nôtre and the views from the village edge span the entire coast. You can reach it by continuing up the Chemin du Paradis from waypoint B101 (add 1.5-2 hours return to the hike) or drive up the D3 after your walk.
Confiserie Florian at Pont du Loup offers free guided tours of their factory where they make crystallised fruits, chocolates, and flower-based confections using local flowers — rose, jasmine, violet. A good post-hike stop, though the prices in the shop are steep.
Tourrettes-sur-Loup, a few minutes down the valley, is a medieval village famous for its violet cultivation. In March, the Fête des Violettes fills the narrow streets with flower displays and local produce.
Grasse, the perfume capital of France, is 15 minutes by car. Worth a half-day for the historic perfumeries (Fragonard, Molinard, Galimard) and the old town. See our Provence guide for more.
Canyoning in the Gorges du Loup is popular in summer — the river has natural slides, pools, and jumps from 2 to 10 metres, plus abseiling under the Cascade de Courmes. Several local operators run half-day trips suitable for ages 8+.
Book a Guided Hike
If you’re visiting the Côte d’Azur and want to hike the Balcons du Loup with someone who knows the tunnels, the route, and the history, a guided hike is a smart option. Local UIMLA-certified mountain guides run day trips through the gorge, handling navigation and logistics so you can focus on the experience.
Guided Hiking Experiences
A guided hike is particularly worthwhile if you’re uncomfortable navigating the tunnel sections alone, want to combine the Balcons du Loup with a visit to Gourdon or extensions to the Pic de Courmettes, or are looking for a private experience tailored to your group’s fitness level.
Book a guided hiking trip in partnership with Explore-Share and discover the Gorges du Loup with an experienced guide who knows the tunnels, the trails, and the history.
Accommodation
Pont du Loup and the surrounding villages don’t have a huge range of accommodation, but there are good options within easy reach of the trailhead.
In the Loup Valley
Small hotels and chambres d’hôtes in Tourrettes-sur-Loup and Bar-sur-Loup put you within 10 minutes of the start. Both villages have restaurants and shops for pre-hike supplies.
In Vence (15 minutes)
A wider selection of hotels and B&Bs. Vence has a lovely old town, the Matisse-decorated Chapelle du Rosaire, and plenty of restaurants.
On the coast (30-45 minutes)
If you’re based in Nice, Antibes, or Cagnes-sur-Mer, the Balcons du Loup makes an excellent day trip. The drive up through the lower gorges is part of the experience.
In Courmes
Very limited, but there’s an auberge in the village if you want to split the circuit over two days or combine it with hikes on the Plateau de Saint-Barnabé.
Nearby Hikes
The Gorges du Loup sits within the Préalpes d’Azur Regional Natural Park, and there are several other walks worth combining with the Balcons du Loup if you have time in the area. The Plateau de Saint-Barnabé is a half-day loop from Courmes across a karst plateau with views to the Cheiron massif and the coast. The Pic de Courmettes (1,248 m) can be tagged from the Courmettes plateau for a 360-degree panorama from the Mercantour to Cap Ferrat. For longer hikes, the GR51 Balcons de la Côte d’Azur is a long-distance trail that passes through the gorge as part of a multi-day route along the Riviera hinterland.
Further afield, the Gorges du Verdon is about two hours west and offers multi-day hiking including the famous Blanc-Martel trail. For multi-day treks in the mountains, see our guides to the Tour du Queyras (GR58) and the Tour des Ecrins (GR54), or browse our complete hub for Hiking in the South of France.
FAQ
The corniche sections are exposed, with drops of 200+ metres and some stretches where the iron handrails have rusted away. It’s not technically difficult — the path is wide enough and the footing is generally solid — but you need to be comfortable with significant exposure. The tunnels are dark and the floors are wet. Part of the Sentier du Paradis (between waypoints B101 and B102) has been officially closed since 2012 due to rockfall, but this section is off the main circuit route.
Yes. Some tunnels are over 50 metres long and curve through the rock, so there’s no light from either end. The floors are uneven and often slippery from aqueduct leaks. A phone torch will get you through but a headtorch is far better — it frees your hands and gives a wider beam.
Absolutely. The canal section from Pont du Loup to Bramafan and back is roughly 12 km and takes 3-4 hours. You get all the tunnels and balconies — the best part of the hike — without the climb to Courmes and the Courmettes plateau. This is also the route listed on the Randoxygène site as the Circuit du Canal du Loup.
The full 24 km loop with 880 m of climbing is too long and exposed for young children. The shorter canal section (to Bramafan and back) is manageable for confident, older kids (12+) who are comfortable in the dark and not bothered by heights. Some of the tunnel floors are muddy and low-ceilinged, so smaller children would find it difficult.
You can, but it’s not ideal. The Courmettes plateau has patou sheepdogs guarding flocks, which can be aggressive toward other dogs. There are also electric fences across some sections. If you stick to the shorter canal route (Pont du Loup to Bramafan and back), dogs are less of an issue.
There’s an auberge in Courmes at roughly the halfway point of the full loop. At Pont du Loup, the Confiserie Florian has a café, and Le Bacho brasserie serves local craft beer and tapas. For anything else, pack a picnic — there’s nowhere to buy food between Pont du Loup and Courmes.
The Saut du Loup is a private waterfall viewing site on the D6 road through the gorge. It charges €1 entry for a brief view of a cascade from a platform. Locals are near-unanimous in calling it a tourist trap. The Cascade de Courmes, which you see for free from the trail, is far more impressive at 65 metres high.
Please leave a comment below if you need specific advice for your Gorges du Loup hike, or if you have any recommendations to help us improve this page. Happy hiking!
