One of the most common questions before cycling the Senda del Oso is how long it takes. The answer is not straightforward: it depends on the route you choose, whether you are going alone or with family, your stops and your pace. This guide gives you real times so you can plan your day well. For a complete overview of the route, see the complete Senda del Oso cycling guide.
Time summary
Estimated times by route type
Not including the return transfer
Short route — Entrago → Buyera
Relaxed pace with stops
Short route — fast pace
Regular cyclists
Short route — with young children
Families with young children
Full route — with reservoir detour
Adults, out and back
Short route: Entrago → Buyera (18 km)
This is the most popular option, chosen by the vast majority of visitors. It starts in Entrago, where the bikes are collected, and ends in Buyera, where the bear enclosure is.
Estimated time: between 2 and 2.5 hours at a relaxed pace, including a stop or two.
Recommended route: Entrago → Buyera
Most popular option — all downhill
18 km
Distance
2 – 2.5 h
Duration
Downhill
Elevation
Very easy
Difficulty
The ride is almost entirely downhill, which makes it much more manageable. There is no need to push the pace: the bike rolls on its own for most of the way. The time can vary quite a bit depending on how many stops you make.
Why does it take that long?
The route has a favourable descent: around 300 metres of drop over 18 km. That means most of the ride takes care of itself, with barely any pedalling needed. The actual riding time can be as little as an hour and a half, but stops — for photos, rests or seeing the bears at the end — make up the rest.
Full route: with Valdemurio reservoir detour
The full route adds a detour towards the Valdemurio reservoir, which involves a climb of several kilometres that does require effort. You then descend back to the main trail.
Estimated time: between 3.5 and 5 hours for adults without children, covering the out-and-back route.
Route with Valdemurio reservoir detour
More demanding — not recommended for young children
~36 km
Distance
3.5 – 5 h
Duration
Climb
Detour
Moderate
Difficulty
The detour to the reservoir involves a climb that can be tough if you are not used to it. Many people walk it with their bike. It is worth it for the views, but plan your time carefully before setting off — the return journey also needs to be factored in.
Hire in Entrago
Transfer included — no need to worry about the return
We collect the bikes at the end of the route. You just enjoy the ride.
How long with children
With children, the duration changes quite a bit. The most important factor is not the distance, but the type of bike you use and the age of the children.
Child seat (age 1–4)
2.5 – 3 hThe adult pedals alone — pace is the adult's pace
Trailer or semi-tandem (age 3–6)
2.5 – 3.5 hMore stable, but slightly heavier on descents
Own bike (age 6+)
2.5 – 4 hDepends on the child's pace — more stops, more time
The key with children is not the time — it is the pace. There is no need to rush. The route typically becomes a full day out, not a two-hour activity with a quick return home.
Factors that affect the time
Beyond the distance, several real factors significantly affect the final time:
Number of stops
Each photo, rest or snack stop adds 5 to 20 minutes
Pedalling pace
At a relaxed pace: 2 h; at a good pace: under 1.5 h
Weather conditions
Headwind or rain slows the ride noticeably
Bear enclosure visit
The enclosure at the end of the route can add 30–45 minutes
Unlit tunnels
Some tunnel sections require slowing down due to darkness
Physical fitness
The short route requires no fitness, but fatigue varies
Recommended stops on the route
Most people make between 2 and 4 stops along the way. These are the most common ones:
Start in Entrago
First photo, adjusting the bike, getting orientated
Trail tunnels
The most striking feature — almost obligatory photo stop
Valdemurio area
Café and rest. Good halfway point
Bear enclosure — Buyera
The final and most anticipated point. Allow 30–45 min
How to plan your day well
If you want to enjoy the route without rushing, the best approach is to set off early in the morning. That gives you time to stop, have lunch in Valdemurio and arrive at Buyera to see the bears at a relaxed pace. To choose the best time of year, see our guide on the best time to cycle the Senda del Oso.
Tip: book the bikes for 9:00 or 10:00 in the morning. That gives you the whole day ahead. The short route can easily be done before lunch.
Remember that the hire includes the return transfer: at the end of the route we collect the bikes and there is transport back to Entrago. No need to worry about arranging cars.
Online booking
Choose your time and start whenever you like
Hire service with transfer. Bikes for adults and children.
Frequently asked questions about times
How long does the Senda del Oso take by bike?
The short route (Entrago → Buyera, 18 km) takes 2 to 2.5 hours at a relaxed pace. With young children it can stretch to 3.5 hours.
Which is faster: the short or the full route?
The short route. The full route includes a detour with a climb to the Valdemurio reservoir that adds 1 to 2 hours.
How much time should you add to see the bears?
30 to 45 minutes. The enclosure is at the end of the route and is worth taking your time over.
Do you need to be fit to complete it in under 2 hours?
No. The route is downhill, so it requires no effort. Anyone can do it comfortably without prior experience.
Does the time include the return?
No. The times shown are for the ride only. The return is included in the hire: there is a transfer back from Buyera to Entrago.