Trubia Valley — The most family-friendly route
Tunon - Proaza Route
Eleven virtually flat kilometres alongside the Trubia River, designed for unhurried enjoyment with the whole family. A route where children pedal safely through chestnut groves, shaded picnic spots and the unforgettable encounter with Paca and Molina, Asturias' most famous brown bears. The perfect section for your first day on La Senda del Oso (Bear Trail).
Practical information
The route kilometre by kilometre
From the chestnut groves of Tunon to the Bear Enclosure in Proaza, a ride that follows the course of the Trubia River through one of the most beautiful valleys in Asturias. Here is what you will find along each section.
Setting off from Tunon — Recreation area and Trubia River
The route begins at the old Tunon railway station, now converted into a recreation area with a spacious car park, drinking fountains and benches. As soon as you set off, the path weaves into centuries-old chestnut groves whose canopies form a green tunnel over the trail. To your left, the Trubia River flows gently with that clear-water sound that will accompany you the entire way. The surface is clean, wide tarmac, perfect for children to pedal confidently while adults ease into the ride. If you head out early in the morning, you may well spot a roe deer crossing the trail or grey herons fishing in the Trubia pools. These first two kilometres serve as a gentle warm-up: flat terrain, abundant shade and the promise of what lies ahead.
Trubia Riverbanks — Bridges and picnic areas
From the second kilometre onwards, the trail hugs the river even more closely. The Trubia flows here over smooth pebbles and crystal-clear pools where, in summer, you will see families cooling their feet. The path crosses several small wooden and metal bridges spanning tributary streams. These are ideal spots to pause, take photos and let the children explore the riverbank. The riverside vegetation is lush: alders, ash trees, willows and hazel create a green gallery that shields you from the sun even during the hottest hours. Every few hundred metres you will find small rest areas with wooden benches, some with stone tables perfect for an early lunch. The terrain remains completely flat, without a single incline to break a sweat. This is the section that convinces even the smallest riders that cycling is a brilliant plan.
Central section — Pre-Romanesque church of Santo Adriano
The central section of the route holds a special reward. Near Tunon, a short signposted detour leads to the church of Santo Adriano de Tunon, a UNESCO World Heritage Site as part of Asturian pre-Romanesque art. Built in the 9th century by order of King Alfonso III, it preserves original wall paintings over a thousand years old. It is well worth stopping for even a few minutes to admire its monumental simplicity. Back on the trail, the landscape changes subtly: the route winds between small stone hamlets with slate roofs where time seems to have stood still. The surrounding limestone peaks become more visible, framing the valley with their jagged silhouettes. If you have binoculars, this is a good section for spotting griffon vultures soaring above the rocky cliffs.
Picnic areas and drinking fountains
This is the best-equipped section of the entire route and the place where most families choose to take their long break. You will find several picnic areas with wooden and stone tables, fresh drinking-water fountains fed directly from the mountains, litter bins and generous shade beneath oaks and chestnut trees. It is the perfect spot to spread out a cloth, unpack the Spanish omelette and take things easy. Children love exploring the riverbanks, where shallow pools are safe for splashing in summer. Some picnic areas have stone barbecue grills, although their use may be restricted in summer due to fire risk. The feeling in this section is of being in an endless natural garden: green grass, leafy shade and the constant murmur of the Trubia as your soundtrack. It is easy to lose track of time here, and that is precisely the idea.
Arrival at Proaza — The Bear Enclosure
The final two kilometres hold the moment everyone has been waiting for, especially the children. Shortly before reaching the centre of Proaza, the trail passes the Bear Enclosure, a large naturalised compound that is home to Paca and Molina, two Cantabrian brown bears rescued as orphaned cubs. Today they live in semi-freedom in this wooded meadow where you can watch them from an elevated wooden walkway just a few metres away. Access to the enclosure is free and open, with no set hours or ticket office. Watching these bears stretch, forage among the logs or bathe in their pool is an experience that stays with you. From the enclosure, a short pedal takes you into Proaza, where you will find parking, fountains, restaurants and the iconic brown-bear sculpture that has become the symbol of the entire district. If you still have energy, you can continue towards Caranga and the Teverga branch.
Practical tips
What to bring
- ✓ Water (min. 1 bottle per person)
- ✓ Sun cream and a hat
- ✓ Light rain jacket (just in case)
- ✓ Sandwiches and fruit for a picnic
- ✓ Helmet (compulsory for under-16s)
- ✓ Binoculars (optional, for wildlife)
Water and shade
This route is generous in both shade and water. Most of the ride runs beneath the canopy of riverside trees (alders, ash, chestnuts) that shelter you from direct sunlight. Drinking-water fountains are available at the Tunon recreation area, in the picnic zone around km 7-9 and in Proaza. Even so, in summer it is wise to carry your own water, especially if you are with children. The Trubia pools are a constant temptation for a refreshing dip.
Best time of day
To enjoy the route in peace, get a slightly early start: setting off between 9:00 and 10:00 lets you ride in the cool of the morning, encounter fewer people and have the picnic areas free for your lunch stop. In summer, the morning window is clearly the best. If you prefer the afternoon, from 17:00 onwards the temperature drops and the low-angled light over the Trubia valley is particularly beautiful. Weekends and public holidays in July and August are the busiest days.
Where to park
The starting point in Tunon has a free car park next to the old railway station, with space for around 40-50 vehicles. It is the most convenient place to leave your car if you are doing the out-and-back ride. There is also free public parking in Proaza near the trail. In peak season (July, August and bank holidays), aim to arrive before 10:30 to secure a space in Tunon, as it fills up quickly at weekends.
Visiting Santo Adriano
The pre-Romanesque church of Santo Adriano de Tunon (9th century, UNESCO World Heritage Site) is worth a 15-20 minute stop. It sits right beside the trail with easy access. The interior preserves wall paintings over a thousand years old. Opening hours vary by season: in summer it is usually open mornings and afternoons; in winter, visits are by appointment only or on reduced hours. Check the latest timetable at the Proaza tourist office.
Safety with children
The route is shared by cyclists and pedestrians, so teach children to ride on the right and to call out before overtaking. There are no road crossings or dangerous stretches, but keep an eye on the riverbanks if children venture close to the water. The surface is smooth and pothole-free, suitable for bikes with stabilisers. For very young children (under 3), a child trailer or rear-mounted seat works perfectly on this section thanks to the complete absence of hills.
FAQ
Is this the best section of La Senda del Oso for families with young children?
Yes, without a doubt. The Tunon-Proaza section is the most recommended for families with young children for three reasons: the profile is virtually flat (barely 30 metres of elevation gain over 11 km), the surface is in excellent condition throughout, and there are multiple stopping areas with picnic spots, drinking fountains and shade for resting. Children aged 3-4 with stabilisers can comfortably complete most of the route without difficulty.
Can you do the route as a round trip (Tunon-Proaza-Tunon)?
Yes, and this is actually the most popular option. The round trip totals 22 km, which by bike can be comfortably completed in 2.5 to 3.5 hours with stops. Since it is virtually flat, the return leg requires no extra effort. It is also the most practical way to organise your day, as you leave your car parked in Tunon and have no need for additional transport to get back.
Are there restaurants or places to eat along the route?
In Tunon and Proaza you will find several restaurants and traditional Asturian cider houses. Along the route itself there are no establishments, but there are numerous picnic areas with tables and benches where you can enjoy a packed lunch. The most popular approach is to bring sandwiches and fruit, stop at one of the picnic areas in the middle section, and save the restaurant for when you return to Tunon or Proaza.
How do I get to Tunon from Oviedo?
Tunon is about 30 km from Oviedo, approximately 35 minutes via the AS-228 road towards Proaza. Access is straightforward and well signposted. On arrival in Tunon, follow signs to the old railway station, where there is a large free car park that serves as the usual starting point of the route. There is also an ALSA bus service from Oviedo with a stop in Tunon.
Can I bring my dog on La Senda del Oso?
Yes, dogs are welcome on La Senda del Oso (Bear Trail) as long as they are kept on a lead at all times. Please pick up after your dog and keep them under control, especially in busier areas with cyclists and pedestrians. Bring enough water for your pet too, as the heat can affect them in summer. The only restriction is that dogs are not permitted inside the Bear Enclosure for the safety of the animals.
Explore other Bear Trail routes
Each section of La Senda del Oso has its own character. Find the one that fits your plans.
Entrago - Buyera
18 km · Downhill · The star route
The ultimate descent: 18 km downhill through the green heart of the trail, with tunnels and viaducts.
Proaza - Valdemurio
10 km · Gentle climb · Peaceful
The quiet branch few people know: chestnut groves, mountain hamlets and the Valdemurio reservoir without the crowds.
Family Guide
Tips by age · Equipment · Safety
Everything you need to know for enjoying La Senda del Oso with children, from babies to teenagers.
Ready for a family cycling adventure?
Book your bikes, pack a picnic and enjoy an unforgettable day alongside the Trubia River. La Senda del Oso (Bear Trail) awaits you.