Proposals and excursions 

Following the lava flows

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Emitted by the local volcanoes, once solidified, the Fluvià and other local rivers In conjunction with the wind and rain have eroded the lava into spectacular cliffs at Castellfollit de la Roca and El Boscarró and Fontfreda in Sant Joan les Fonts.

These two walks provide a glimpse of the landscapes of the valleys of La Garrotxa, whose forestlined rivers are replete with interesting evidence of an all-but forgotten industrial past.

Castellfollit de la Roca

The second lava flow route begins in the Plaça Major in Sant Joan les Fonts. This route first crosses the river Fluvià over the medieval bridge and then takes you to Molí Fondo, where three superimposed lava flows from different eruptive periods are visible. Afterwards, the route visits the cliffs at El Boscarró and Fontfreda, formed by two lava flows.

Sant Joan les Fonts

The second lava flow route begins in the Plaça Major in Sant Joan les Fonts. This route first crosses the river Fluvià over the medieval bridge and then takes you to Molí Fondo, where three superimposed lava flows from different eruptive periods are visible. Afterwards, the route visits the cliffs at El Boscarró and Fontfreda, formed by two lava flows.

In Sant Joan les Fonts, near the Three Lava Flows Trail, you will find a marked route known as La Ruta de les Fonts i Verlets that runs through an area of natural springs, pastures and marshes. This walk is an ideal complement to a visit to the nearby lava-flows and a chance to see close-up the volcano of La Canya, one of the least-known volcanos in La Garrotxa, as well as some of the town’s dozens of natural springs.

Don’t miss

- In Castellfollit de la Roca: wander through the sinuous streets of the old town to the Josep Pla viewpoint and old church-museum. A gathering of gegants (giants) takes place on the last Sunday of September.

- In Sant Joan les Fonts: a visit to the Romanesque monastery and the Juvinyà castle is a must. On the night of Sant Joan (June 23-24) the Nit de les Dones d’Aigua (Night of the Water Women), a show combining theatre and dance, is performed.

Did you know?

The basalt cliff consists of a number of superimposed lava flows, which, once they have cooled, form an extremely hard rock known as basalt. As it cools, the lava contracts and cracks appear that form the hexagonal columns.

Route Details

Itinerary Sant Joan les Fonts:

Max. height: 362 m Min. height: 323 m

Distance: 4,70 km approx.

Itinerary Castellfollit de la Roca:

Max. height: 302 m Min. height: 235 m

Distance: 1,85 km approx.

Route only suitable on foot

How to visit? the trail to the lava-flows is designed to be walked and is marked with signs from La Garrotxa Volcanic Zone Natural Park. La Ruta de les Fonts i Verlets is also for walkers, although most of the trails are also suitable for bikes.

How to get there: there are car-parks on the outskirts of both towns; take one of the exits from the C-66 or A-26 west of Besalú

Duration: 1h 15 min Natural Park itinerary 13 in Castellfollit de la Roca; 1h 50 min following Natural Park itinerary 16 in and around Sant Joan les Fonts

Accessibility: unlike the trail to the lava flows, La Ruta de les Fonts i Verlets is suitable for both wheelchairs and pushchairs/prams.

Observations: the Sant Joan les Fonts itinerary is rough underfoot and appropriate footwear is necessary. This itinerary is not possible after heavy rain as the river cannot be crossed. The Castellfollit de la Roca itinerary is much easier underfoot. Both are essentially flat except for: the walk from the river up to Castellfollit (55 m) and the walk down to Molí Fondo (25 m) after Sant Joan les Fonts

Signposted? Yes. Natural Park itineraries 13 and 16

More information

Leaflet for Natural Park itineraries 13 and 16

La Garrotxa tourist map

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How to get there?

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