The Picos de Europa are a compact limestone range in northern Spain — roughly 20 km (12 miles) across, topping out at Torre de Cerredo at 2,650 m (8,690 ft) — and the riding is built around three passes and two gorges rather than one signature road. The core loop links Potes, Riaño and Cangas de Onís using the N-621 over Puerto de San Glorio at 1,604 m (5,262 ft) and the N-625 over Puerto del Pontón at 1,280 m (4,199 ft), with the Desfiladero de La Hermida and the Desfiladero de los Beyos as the connecting gorges. Two things decide your day here: whether the weather is in, and whether the Lakes of Covadonga road is open to private vehicles.
Why this range rides differently
Most European mountain riding is about altitude. The Picos are about compression. The range is part of the Cantabrian Mountains and sits across three autonomous communities — Asturias, Cantabria and Castile and León — but the whole thing is small enough to circle in a long day. Inside that small footprint the national park drops from 2,650 m on Torre de Cerredo to 75 m on the Deva river, a vertical range of 2,573 m. That means you get sea-level humidity, beech forest, and bare alpine karst within an hour of each other, and the road surface changes character just as fast.
The rock is almost entirely limestone, glacially carved into alpine karst, which is why the gorges are so narrow. The Cares Gorge between the Central and Western massifs is 1.5 km (0.9 miles) deep. Roads here do not go over things when they can go through them, so a lot of the mileage is canyon riding with rock on one side and a drop on the other — engaging, but not a place to be looking for overtakes.
Route at a glance
| Core loop | Potes – Riaño – Cangas de Onís – Panes – Potes, roughly 250 km / 155 miles |
| Main roads | N-621, N-625, N-627 plus local CA and AS roads |
| Highest pass | Puerto de San Glorio, 1,604 m / 5,262 ft on the N-621 |
| Second pass | Puerto del Pontón, 1,280 m / 4,199 ft on the N-625 |
| Highest peak | Torre de Cerredo, 2,650 m / 8,690 ft |
| National park | 671 km², Spain's first, created 22 July 1918 |
| Time on a motorcycle | 2–3 days to ride the loop and the spurs properly |
| Season | Roads are low enough to be open most of the year, but winter snow and ice close passes without notice |
Open the core loop in Google Maps — Potes, Riaño, Cangas de Onís, Panes and back, ready to send to your navigation before you leave.
Puerto de San Glorio, the N-621 spine
San Glorio tops out at 1,604 m (5,262 ft) on the boundary between Cantabria and Castile and León, and the N-621 that crosses it runs about 37 km (23 miles) from Portilla de la Reina on the León side down to Potes. It is fully paved and, by Spanish mountain standards, generously wide. The southern approach is open and fast; the descent to Potes tightens progressively as the valley closes in. At the summit a short paved spur runs to the Collado de Llesba viewpoint, which is one of the few places you can see the scale of the central massif from a saddle rather than a hiking trail.
Riders report the pass as the least intimidating of the big Picos crossings — few genuine hairpins, mostly third and fourth gear — which makes it a good first crossing on a loaded touring bike before you commit to the tighter roads.
The Desfiladero de La Hermida
North of Potes the N-621 continues into the Desfiladero de La Hermida, the gorge cut by the Deva river between the Picos and the coast. This is the section people photograph: near-vertical limestone walls, the road pinned to the riverbank, and long stretches where the sky is a strip overhead. It is not a technical challenge so much as a sustained one — the corners are constant, sight lines are short, and the surface stays damp in shaded sections long after the rest of the region has dried out.
The N-625 and the Desfiladero de los Beyos
The western side of the loop is the N-625, and it is the bigger climb of the two. Measured from Cangas de Onís at 62 m, the road gains height for 45.7 km (28 miles) to the summit of Puerto del Pontón at 1,280 m, running the whole way through the Desfiladero de los Beyos. The south side starts from Riaño at 1,148 m, so the pass feels almost flat from that direction and dramatic from the other — worth planning your direction of travel around if you only ride it once.
Los Beyos is narrower than La Hermida in places and has more tunnel and rock-overhang sections. Coaches use it. Expect to spend time behind something slow and to take your overtakes only where the gorge opens out.
Lagos de Covadonga, and the access rule that catches riders out
The road from Covadonga up to Lakes Enol (1,070 m) and Ercina (1,108 m) is the most famous climb in the region — 12.6 km at an average gradient of 7.3%, with the La Huesera ramp averaging 15% over 800 m, which is why the Vuelta a España keeps coming back to it. The lakes are also where the whole park started: the Parque Nacional de la Montaña de Covadonga was declared on 22 July 1918, the first national park in Spain, and later grew into today's 671 km² Picos de Europa National Park.
Here is the part that ruins plans. On busy dates the access road is closed to private vehicles for the full 24 hours, and motorcycles are not exempt — you park below and take the shuttle from Cangas de Onís or one of the other park-and-ride lots. The 2026 regulated dates published by the local access authority run across late March, most of April, weekends in May, a continuous block from 1 June to 18 October with a handful of exceptions, then scattered dates through late October, early November and the first week of December. As of August 2026 those were the published dates, but they are set season by season, so check the official access page before you ride up.
Fuente Dé and the southern spurs
From Potes, the dead-end road up the Liébana valley finishes at Fuente Dé under a wall of rock. The cable car there climbs from 1,070 m to 1,823 m — a 753 m lift on a 1,450 m cable, in about four minutes — and has been running since 21 August 1966. It is the fastest way to stand in the high Picos without a hiking day, and the car park at the bottom is a normal motorcycle stop rather than a restricted zone.
Practical details
Season and weather. Unlike the Alps, these passes are not high enough to be formally closed for months at a time, so the Picos are rideable across a long season. That is not the same as safe. This is the wet side of Spain — Atlantic weather stacks up against the range and sits there, and fog in the gorges arrives faster than the forecast suggests. Winter brings snow and ice to San Glorio and Pontón, and the León-side enclave of Vega de Liordes recorded −35.8 °C on 7 January 2021, which tells you what the high ground can do. Check regional road status before committing to a pass in the shoulder seasons; verified as of August 2026.
Fuel. Potes, Cangas de Onís, Riaño, Panes and Arenas de Cabrales all have fuel. The gorges and the passes do not. If you are fitting the Picos into a longer trip, our overview of the best motorcycle roads in Spain shows how the range compares with the Pyrenees and Andalusia. Filling in the valley towns rather than pushing on is the whole strategy — a 100 km rhythm covers the loop comfortably.
Traffic and surface. Livestock on unfenced mountain roads is normal, not exceptional, and the region genuinely holds Cantabrian brown bear, Iberian wolf and large numbers of chamois. Damp leaf litter and cow traffic on the higher pastures both cut grip. Ride the blind crests expecting something in the road.
Tolls and restrictions. The loop roads themselves are toll-free national and regional roads. The restrictions that matter are access ones — the Covadonga road, and seasonal parking limits at popular trailheads. Motorway approaches from Santander or Bilbao may involve tolls depending on the route you pick; check the operator's site rather than assuming.
Gear notes for the Picos
Two things about this region punish a phone-in-a-cradle setup. The gorges kill mobile signal for long stretches, and the weather is genuinely wet often enough that a screen you have to wake up and wipe becomes a liability at exactly the moment the road forks. Loading the loop before you leave and running it on a dedicated navigation setup with offline maps means the route survives the dead zones; a JADO S6 riding system keeps it on a screen built for rain and gloved hands rather than in a pocket. The other one is pressure. You start a Picos day near sea level and finish it 1,600 m higher, sometimes twice, and cold morning air on the León side does measurable things to a tyre that was set warm in Potes — our tyre pressure guide covers why, and a TPMS sensor turns it from guesswork into a number you can see. If you are staying in rural casas rurales with one socket between four riders, an MT100 bi-directional charger saves the nightly argument.
FAQ
How many days do you need for the Picos de Europa on a motorcycle?
Two days rides the core loop with time to stop. Three lets you add the Fuente Dé spur, the Covadonga road and the Sotres side valleys without rushing, which is where the region actually pays off.
Can you ride a motorcycle up to the Lakes of Covadonga?
Only outside the regulated dates. When the access plan is in force the road is closed to private vehicles around the clock and motorcycles are included — the shuttle bus is the only way up. Check the published dates for the year before you plan around it.
What is the best time of year to ride the Picos?
Late May to early July and September give the best balance of open roads, long daylight and manageable crowds. August is busy and the Covadonga restriction is continuous. Winter is rideable in the valleys but the passes are a gamble.
Are the roads difficult?
Not technically extreme, but sustained. Narrow gorge sections, short sight lines, tunnels, damp shade and livestock ask for concentration rather than skill. A big touring bike fits everywhere on the main loop.
Where should you base yourself?
Potes on the Cantabrian side and Cangas de Onís on the Asturian side are the two obvious bases — both sit at road junctions, both have fuel and accommodation, and either puts the whole loop within a day.
