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Andalusia · about 10 km from Ronda

Surgencia de la Minilla

  • Max depth23 m
  • CertificationFull cave
  • SpecialSidemount

Diving and fills

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The dive

A seasonal spring: powerful after winter rain, while the water drops a lot in summer. A permanent spring lies ~100 m downstream. The last air gallery is ~3 m wide, 6 m high and 100 m long.

Oxygen-poor air in the air chambers between the sumps: 15–16 % O₂ measured (later up to ~18 %). Heavy carrying becomes dangerous; bring an O₂ analyser and breathe from your rig if needed.
A powerful spring in winter and after rain: dive only at low water.
Profile and sections

A seasonal spring: powerful after winter rain, while the water drops a lot in summer. A permanent spring lies ~100 m downstream. The last air gallery is ~3 m wide, 6 m high and 100 m long.

Discovered in 1995 by GER Ronda and explored by the AAES in 2009–2012. This is an exploration cave, not a standard dive.

Practical: the entrance is at ~725 m, so set your computer for altitude.

Depth and profile
S1 15–80 m / -4 to -20 (seasonal) · S2 ~10 m (a lake in dry periods) · S3 vertical shaft to -23 · S4 terminal sump · ~600 m surveyed in total
Configuration
Sidemount or small cylinders; backmount is impractical because of the carrying.
DPV: Not DPV-suitable (estimate)
Short sumps with dry carries: no scooter.
Who can dive where
  • CaveAt least Full cave
  • Whole caveConfigurations: Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 23 m (trimix or deco may be needed) · doesn't decide who may dive
  • Whole caveExperienced divers only · doesn't decide who may dive
Dry sections / haulingExperienced diversDepends on water level or swellPermission needed

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

From Parauta ~1 km of forest track past the Fuente Nueva, then ~600 m down to the Arroyo Bolones. The entrance is on the right bank, ~50 m upstream of where the track crosses the stream (~725 m altitude). Dry passages between the sumps: carry everything.

Plan your route ↗

Around Surgencia de la Minilla

FillsNo fill station known nearby
Where to sleepAround Ronda on Booking.com ↗

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Caves nearby3 within 20 km

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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 (reports and surveys of Andalusian caving clubs, Junta de Andalucía/BOJA, BOE, dive centres, Yunquera town hall, news; Sept 2026). Pins converted from UTM coordinates in club reports (datum not stated), the Cueva del Gato's from Grottocenter; ~ = estimate. Rules change — check locally.