Senda del Oso by bike: complete guide to the route, distance, difficulty and tips

The Senda del Oso is one of the best-known cycling routes in Asturias and one of the easiest to complete.

It is a greenway built on the former track of a mining railway, now fully paved, traffic-free and perfectly signposted.

This makes it ideal for virtually anyone: from families with children to those with no cycling experience.

This guide covers everything you need to plan the route: itinerary, distance, difficulty, times, real tips and answers to the most common questions.

What the Senda del Oso cycling route is like

The Senda del Oso winds through several valleys in central Asturias through a well-preserved natural environment.

The track is wide, comfortable and traffic-free, allowing you to enjoy the route in complete peace.

Along the way you will find:

• Rock-cut tunnels
• Bridges and walkways
• Woodland sections
• Rest areas

One of its greatest appeals is that you cannot get lost: it is a single path, well signposted throughout.

The Senda del Oso route

The full Senda del Oso route covers around 28–30 km, depending on which section you ride.

The route can be done in either direction, but most people start from the top to take advantage of the downhill gradient. This means the majority of the ride is downhill, making the experience much more comfortable.

Where to start the Senda del Oso

There are several starting points, but not all of them offer the same experience.

Entrago (the best option)

Entrago is the most recommended starting point: it sits at the highest part of the route, allows you to ride mostly downhill, and has direct access to the trail. It is the most convenient option, especially if you do not want to worry about transport or logistics.

Other starting points

You can also start from Proaza or Buyera, although these options generally involve more effort or logistics.

Senda del Oso route options

Is the Senda del Oso difficult by bike?

No. No. The Senda del Oso is an easy, accessible route for virtually anyone. The track is comfortable, traffic-free and mostly gently graded.

The only slightly more demanding section is the climb towards the Valdemurio reservoir, but it is not compulsory to ride it.

How long does the Senda del Oso take by bike?

The time depends on the route you choose:

• Short route → 2 to 2.5 hours
• Full route → 3 to 5 hours

Your pace, number of stops and whether you bring children also affect the total time.

Who can do the Senda del Oso?

One of the main advantages of this route is that it is designed for all types of people. No fitness level or previous cycling experience is required.

It is ideal for: families with children, beginners, groups and couples.

Senda del Oso with children

The Senda del Oso is one of the best cycling routes in Spain for families. The route is safe, traffic-free and mostly flat.

What to bring for the Senda del Oso

To ride comfortably:

• Comfortable clothing and trainers
• Water and snacks
• Sunscreen in summer
• Waterproof jacket in winter

There are few places to eat along the route. You will find options at Valdemurio (café) and Proaza (restaurants at the end).

Best time of year for the Senda del Oso

The route can be done year-round. Spring and summer offer the most pleasant weather and longest days. Autumn is quieter with beautiful scenery. Winter is the most peaceful, though rain is more likely.

Where to see the bears

One of the highlights of the route is the bear enclosure, located near the end of the trail in the Buyera area. It is a popular stop for everyone who rides the trail.

How to organise the route with no hassle

The easiest option is to start at the top (Entrago), ride downhill and return to the starting point with the included transfer service. This means no need to arrange extra transport or ride back.

Frequently asked questions about the Senda del Oso