Baltzola Caves – Abaro Tunnel loop from Axlor

Hiking trails & Routes

Baltzola Caves – Abaro Tunnel loop from Axlor

Moderate

4.6

(10)

hikers

Baltzola Caves – Abaro Tunnel loop from Axlor

02:23

7.19km

300m

Hiking

Moderate hike. Good fitness required. Mostly walkable paths. Sure-footedness required. The starting point of the route is accessible with public transport.

Last updated: August 8, 2026

Waypoints

Start point

Bus stop

Get Directions

910 m

Puente de los Gentiles

Highlight • Natural Monument

The Bridge of the Gentiles is a natural arch but legends say that it was built by gigantic mythological beings called Gentiles.

Translated by Google •

Tip by

1.02 km

Baltzola Caves

Highlight • Cave

Impressive cavity, until a while ago you could go through. They have recently put up a sign, warning of the danger of contracting Q fever, and the passage is prohibited.

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Tip by

1.64 km

Abaro Tunnel

Highlight • Cave

Like the Baltzola caves, it is now prohibited to cross them, due to the danger of Q fever.

Translated by Google •

Tip by

1.66 km

Ermita de San Lorenzo

Highlight • Religious Site

Pretty hermitage, in the vicinity of the Baltzola neighborhood.

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Tip by

4.79 km

Garaio Summit

Highlight • Summit

The access is quite steep and with loose stones. We must be careful.

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Tip by

7.19 km

End point

Bus stop

Way Types & Surfaces

Way Types

3.94 km

1.08 km

945 m

845 m

393 m

Surfaces

4.14 km

1.08 km

1.02 km

572 m

385 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (520 m)

Lowest point (270 m)

Weather

Wednesday 4 November

16°C

2°C

0 %

Additional weather tips

Max wind speed: 10.0 km/h

to get more detailed weather forecasts along your route

Comments

May 2, 2023,Bizkaia-Indusi: PuenteGentiles+CuevasBaltzola+TunelAbaro+Garaio+Baltzolamendi+BargondiakoAtxa

- Garmin data: 3:38h total time, 590m total unevenness. Video: relive.cc/view/vRO7JpV2Byv
- NOTE: a joy of route for a spring afternoon. Although when we reached the Baltzola caves and the Abaro tunnel we found a sign that prohibited the passage, due to the danger of contracting Q fever. A great shame. You also have to be careful on the ascent …

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