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Northern Spain

Pozo San Vicente

  • Max depth70 m
  • CertificationFull cave
  • SpecialSidemount

Diving and fills

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Fills nearby

  • Fill stationCentro Buceo Pedreña~101 min drive (estimate)Air, nitrox and mixed gas; the team includes a trimix gas blenderRoute ↗
  • Fill stationBuceo Mundo Submarino~104 min drive (estimate)Air, nitrox, trimix and helium in any mix, up to 300 bar (O₂ and He analysers)Route ↗
All fill stations and places to stay ↓

The dive

A resurgence by the Ebro in the Alto Ebro gorges. Dark rock and silt mean visibility drops to zero quickly. It was explored from 2000 to 2006: first by Rupert Skorupka, then by Spanish teams; Martín Burgui reached 390 m in 2006.

At high water the spring overflows violently and visibility is ~1 m; silt quickly gives zero visibility.
Deep beyond a narrow entrance: the explorers used trimix (18/35) and stages.
Profile and sections

A resurgence by the Ebro in the Alto Ebro gorges. Dark rock and silt mean visibility drops to zero quickly.

It was explored from 2000 to 2006: first by Rupert Skorupka, then by Spanish teams; Martín Burgui reached 390 m in 2006. A dye trace (2010) linked it to the Torca de La Nava, 5 km away.

Practical: there is no recent information (after 2010) on the line or access, so check with local clubs first.

Depth and profile
Entrance -3 m, first passages to -14 m · -57 m at 200 m (Y-junction) · -70 m at 305 m · end at 390 m / -69 (2006)
Configuration
Sidemount: narrow entrance; roomier galleries only after ~250 m
DPV: Not DPV-suitable (estimate)
Narrow entrance and silt
Who can dive where
  • CaveAt least Full cave
  • Whole caveConfigurations: Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 70 m (trimix or deco may be needed) · doesn't decide who may dive
  • Whole caveExperienced divers only · doesn't decide who may dive
Experienced diversDepends on water level or swell

This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.

How to get there

Pool along the footpath from Pesquera de Ebro to Cortiguera, right by the river.

Plan your route ↗

Around Pozo San Vicente

Fills2 fill stations · nearest 79 km
  • Centro Buceo Pedreña

    ~101 min drive (estimate)

    Barrio La Barquería 151E, 39130 Pedreña

    Air, nitrox and mixed gas; the team includes a trimix gas blender

    Not stated — ask

  • Buceo Mundo Submarino

    ~104 min drive (estimate)

    C/ Dr. Federico de la Lastra 3, bajo, 39770 Laredo (Cantabria)

    Air, nitrox, trimix and helium in any mix, up to 300 bar (O₂ and He analysers)

    Not listed — ask

    SSI centre with recreational and technical courses; rents 10/12/15/18 l cylinders and 2×10 and 2×12 l twinsets. Fills for visiting divers: ask. Closest fill point for Matienzo (~30 min, estimate).

Drive times from Covanera (Pozo Azul): we don't know this site's exact spot.

Caves nearby6

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Sources, sharing and disclaimer

Sources

Current conditions

Visibility, flow and water levels change quickly. Right before your dive, check what other divers report:

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Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from web research (G.E. Edelweiss, G.E. Niphargus, Espeleobuceo en Burgos blog, Matienzo Caves Project, UTD, Pegasus Caving Club, Soria Noticias, Turismo Burgos, BOE Ley 15/2008, Montaña Regulada, the SEMH hyperbaric-centre list, dive-centre websites, Wikipedia; Sept 2026). Pins from Wikipedia, club catalogues (UTM converted to WGS84) and OSM; ~ = estimate (drive times too). Rules change — check locally. Ojo Guareña and A Buraca das Choias: Cuevas Turísticas, the Espeleobuceo en Burgos blog (S.I.E. Burgos), BurgosNoticias, G.E. Edelweiss, El Progreso, GCiencia, Malamalama, Aventuras en Galicia and the Colegio de Enfermería de A Coruña (Ferrol chamber).