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Dominican Republic

El Asfalto (Pedernales)

  • Max depth11 m (36 ft)
  • CertificationFull cave
  • Water temperature≈ 24–26 °C (75–79 °F)estimated, no reports yet
  • SpecialExperienced divers

The dive

Fresh water in a very clean cave. According to the book it is the most richly decorated cave in the country, with off-white walls and ceilings full of formations, and little fauna.

Very fragile formations and a difficult dry access with crawling and climbing: only for experienced cave divers with good trim.
Profile and sections

Fresh water in a very clean cave. According to the book it is the most richly decorated cave in the country, with off-white walls and ceilings full of formations, and little fauna. The cave was first explored by Lamar Hires.

Practical: the book advises at least 100 cave dives because of its fragility.

Depth and profile
To -11 m; about 230 m long. A main passage without side passages.
Configuration
Single cylinder with a Y or H valve, or sidemount: twins don't fit through the access (2003).
Who can dive where
  • CaveAt least Full cave
  • Whole caveConfigurations: Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 11 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 divers

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

In Pedernales province near the Haitian border, on the Barahona–Pedernales road (the name comes from the road's asphalt plant). By car to the entrance, then about 100 m through a dry cave: over a large boulder and crawling through narrow cracks to the pool. A second entrance only by rappel. Data from 2003: ask about current access.

Plan your route ↗

Around El Asfalto (Pedernales)

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Sources, sharing and disclaimer

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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 (DRSS dr-ss.com, Dive Dominicana, Dominican Divers, Scuba Diving, Advanced Diver, World Nomads, divemasteraustin.com, showcaves.com, godominicanrepublic.com, Dominican press, DAN; Oct 2026), the book Las cuevas sumergidas de República Dominicana (environment ministry / Fundación Espeleobuceo Hispaniola, 2003; facts only); Dive Dominicana's gases and prices confirmed by Dive Dominicana, and Golden Arrow's details by Golden Arrow (Oct 2026). Oleg's Bat House and Sistema La Negra were added in Nov 2026 (DRSS, Dive Dominicana, Dominican Divers, and for Oleg's Bat House Caving News and DR1 after Listín Diario, 2011). The DRSS descriptions date from around 2013. Pins only where a source gives them; the caves on private land around Santo Domingo deliberately without a pin. Rules, prices and access change — check with your guide.