Bear Trail: Tuñón to Proaza section landscape

Tuñón–Proaza Section

The ideal starting point of the Bear Trail, perfect for families and wildlife lovers.

About the Tuñón–Proaza section

The first 6 km of the Bear Trail run from Tuñón to Proaza following the old mining railway. This is the most family-friendly section, passing through illuminated tunnels and skirting the famous bear enclosure at km 3.

Distance 6 km one way
Time 1.5–2.5 h
Difficulty Very easy
Elevation gain −45 m (descent)

What to see on this section

  • Bear enclosure (km 3): Home to Molina, the only bear currently in the enclosure. Arrive early for the best chance of spotting her.
  • Illuminated tunnels: Several tunnels carved through the mountain, all lit and accessible year-round.
  • Trubia river gorge: The trail hugs the river through dramatic vertical rock walls.
  • Proaza village: The end point, with a small café and picnic area.

Ready for adventure?

Ready to ride the Bear Trail?

Book your bike rental now and discover the most spectacular section of the trail.

Frequently asked questions

Common Questions

Frequently Asked Questions

We solve the most common doubts so that your getaway to the Bear Trail is perfect.

How many kilometers long is the Bear Trail?

The Bear Trail is Y-shaped and offers several options. The most popular route is the 20 km descent from Tuñón to Entrago, perfect for families by bike in about 2.5 hours. More active visitors can do the full valley round trip (40 km, 3-4h) or both valleys up to 70 km total.

Is it suitable for families with children?

Yes, it is one of the most suitable routes for families in Asturias. The terrain is flat and well-signposted. We recommend the Tuñón–Proaza section for the little ones.

Can it be done with a dog?

Yes, dogs are welcome as long as they are on a leash. There are water fountains at several points along the route.

How long does it take to complete the full trail?

By bike, the standard 20 km section (Tuñón–Entrago) takes about 2–2.5 hours at a relaxed pace. For the full valley round trip (40 km), allow 3.5–4.5 hours. Most families just do the descent and return via the included shuttle service.

Where can I park?

There are several free parking lots at the starting points: Tuñón, Entrago, and Proaza. In high season they fill up early; we recommend arriving before 9am.

When is the best time to do the Bear Trail?

The route is practicable all year round, but spring (April-June) and autumn (September-October) offer the best temperature and landscape conditions.