The Gros hill is not the highest of the mountain range, but it is close (764).

The watchtower raises you about 20 meters higher and from the top you have views of 4 bands:

1> On the coast and sea of La Selva and Maresma,

2> In Barcelonès (Collserola can be seen on the horizon), Bages and Vallès (Montserrat),

3> In the Gironès (you can distinguish the Rocacorba with the antennas) and 4> In the massif of Montseny and the castle of Montsoriu.

Getting here requires a lot of effort, but it's worth it!

HIGHLY RECOMMENDED!

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Alex Maba

February 19, 2025

Mountain biking

Quite a quiet place to visit by bike or on foot. In my case I went up from Pineda de Mar passing through Hortsavinya. At the top of Turó Gros there is a watchtower with views of the entire area, if you go up on a cloudless day, it is more than worth going. The tower is abandoned and without a padlock. Quite a recommendable place! I will surely go up there again.

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An Argentona

December 6, 2025

Mountain biking

Long before the current metal structure, this spot was already being used in the 19th century as a signal post, where forest rangers gave visual warnings from a wooden platform. It wasn't chosen solely for its height, but also because it's a place where the wind changes abruptly, which helps detect smoke from a great distance. In the 1970s, a rotating fiberglass cabin for continuous surveillance was tested there, but it was discarded because the wind moved it too much. An unassuming spot, but with a hidden history behind its forestry function.

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Best routes to Fire Watchtower on Turó Gros

4.8

(4)

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1. Arenys de Munt – Fire Watchtower on Turó Gros loop from Arenys de Munt

37.8km

03:51

1,120m

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

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Hard

5.0

(8)

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2. Three Borders Cross – Fire Watchtower on Turó Gros loop from Calella

33.6km

03:11

900m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Moderate

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3. Canet Cross Viewpoint – Fire Watchtower on Turó Gros loop from Arenys de Munt

32.2km

03:27

1,000m

990m

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

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Hard

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Informations

Elevation 810 m

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Location: Sant Celoni, Valles Oriental, Barcelona, Catalonia, Spain

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Fire Watchtower on Turó Gros

1. Arenys de Munt – Fire Watchtower on Turó Gros loop from Arenys de Munt

2. Three Borders Cross – Fire Watchtower on Turó Gros loop from Calella

3. Canet Cross Viewpoint – Fire Watchtower on Turó Gros loop from Arenys de Munt

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