Unique Hiking Trail in Catalonia: Pine Forests, Gorges, and an Amazing Heart-Shaped Cave Near Barcelona. Just 45 minutes from Barcelona lies a picturesque route featuring a unique geological landmark—a heart-shaped cave. Discover how to find this hidden gem in the Sant Llorenç del Munt i l'Obac Natural Park.
In Catalonia, just half an hour from bustling Barcelona, there is a hiking trail that is attracting more and more nature lovers and outdoor enthusiasts. Its main highlight is a geological formation known as the “heart cave” (cueva corazón), which has become popular on social media. Despite growing fame, the spot remains unmarked on official maps and lacks signposts, making a visit a bit of an adventure.
The route to this natural attraction runs through the Sant Llorenç del Munt i l'Obac Park. The cave itself is a hollow whose entrance, shaped by centuries of erosion, wind, and water, has taken on a distinct heart shape. This is a completely natural creation, untouched by humans. The contrast of the reddish rock and the light filtering inside creates a unique view highly valued by photographers and travelers.
The trail is of medium difficulty and passes through landscapes typical of this mountain range: eroded ridges, rocky stretches, dense pine forests, and conglomerate gorges. Hikers are advised to have at least basic physical fitness and wear suitable trekking shoes. The most popular route starts from Coll d'Estenalles, one of the main park entrances. Along the way, there are other caves to discover, such as Mura (cova de Mura) and Manel (cova del Manel).
The Sant Llorenç del Munt i l'Obac Natural Park (Parc Natural de Sant Llorenç del Munt i l'Obac) has been under protected status since 1987 and is managed by the Provincial Council of Barcelona. Its territory covers eleven municipalities in the comarcas of Vallès Occidental and Bages. The highest points are La Mola mountain (1,104 meters), home to an old Romanesque monastery, and Montcau peak (1,056 meters), which offers panoramic views of the surroundings.
Along with its geological diversity, the park is known for its rich flora and fauna. Oak and pine groves thrive here, alongside boxwood, and various species of orchids bloom in spring. The forests are home to wild boars, roe deer, and birds of prey such as Bonelli's eagle.
The park can be reached from Barcelona by car in about 45 minutes. The most direct route is along the C-58 towards Terrassa, then via the BV-1221 road to the Coll d'Estenalles pass. Alternatively, take the AP-7 towards Sabadell, exiting at Matadepera. This route offers more than just a hike: it's an opportunity to discover one of Catalonia's most photogenic and remarkable natural wonders.
