Descend into Barcelona's 'Mines d'Aigua'. Explore the hidden engineering that, beneath the asphalt, supplied the city for centuries. Uncover subterranean water heritage, a brutalist vestige of an unknown Barcelona.
The Planns tip
Ask about the guided tour; admission without it offers only a fleeting glimpse.
Practical info
Saturday: at 09.00 h · Free Entry — Prior registration required Limited places
The venue
La Mina Grott
La Mina Grott: Water legacy, route of the first electric train.
On Camí del Cama-sec 22 in Vallvidrera, La Mina Grott is a testament to engineering and transport. Erected in 1855, this nearly 1.5-kilometer tunnel initially channeled water from the Vallvidrera reservoir to Sarrià. By 1908, its role evolved, housing Spain's first electric passenger train – a pioneering link to the Collserola landscapes. Active until 1916, this service set a precedent for urban mobility. Today, La Mina Grott's discreet access in Sarrià-Sant Gervasi continues its hydraulic work, an enduring symbol of innovation and heritage.
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