
Blaumar
CMAS dive centre in Mataró port with 40+ years of trading, running 600+ boat outings a year on the Maresme rocky ridges, 30 minutes by train from Barcelona.
Wide porous-rock barra at 16-19m off Mataro, a long ridge for patient small-life observation in the Mataro-cluster of the Maresme barras.
Last updated April 2026
Torre Ferrer is a long, low porous-rock ridge running roughly parallel to the shore in the Mataro-side cluster of the Maresme barras. The boat runs out 10 to 15 minutes from Mataro port and anchors over the top of the ridge at about 16 metres. The centre lays a guide line from the anchor across the rock so divers can find their way back. A 2011 personal log put the working length of the ridge at roughly 700 metres, with flanks sloping from the 16 metre top down to 19 to 21 metres on the sand line.
The dive is patient observation work along the rock rather than fast travel. Centre framing leans on macro: scorpionfish on porous surfaces, conger and moray eels in the crevices, nudibranchs for camera-equipped divers. The local nickname Congres reflects the resident conger eels in the rock holes. At 16 to 19 metres on the working depth, NDLs are not the constraint and air is fine; Nitrox is optional rather than the local default at this depth.
Torre Ferrer is the quieter neighbour to the better-known Mataro Row 4 ridges. Barra de l'Arbre and Barreta d'en Serra carry the same depth and character but appear more often in centre rotations and forum reports. Torre Ferrer's distinctive feature, as far as published sources go, is its length and the conger-eel reputation captured by the Congres nickname. No signature wreck, no resident large fauna, and no notable concentration of any one species is documented at this site specifically. It earns its place in the rotation as a competent Mataro-cluster ridge with room to slow down and look.
Standard Maresme boat-dive kit applies: computer, SMB, compass, and a torch for crevice work. The bottom is comfortably within OW limits, so air is the practical default and Nitrox is optional. Plan the wetsuit for the bottom: 5mm with hood through summer at this depth, drysuit or 7mm semi-dry from November through April. An older personal log noted submerged netting across part of the ridge in 2011, which is a familiar Mediterranean substrate rather than an active hazard, and may or may not still be in place today. Solo diving is not appropriate here. Bookings run through Blaumar at Mataro port.
What makes this dive site stand out.
About 700m of ridge with a 16m top and 19-21m sides, walkable in a single dive
Scorpionfish, conger, moray, nudibranchs in the crevices and porous rock
Top at 16m and sides at 19-21m sit comfortably within recreational limits
41.5550°N, 2.5100°E
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CMAS dive centre in Mataró port with 40+ years of trading, running 600+ boat outings a year on the Maresme rocky ridges, 30 minutes by train from Barcelona.

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Calm typical conditions, moderate depth, straightforward navigation along the ridge.
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