Puerto Rico Dive Sites

Geniquí Caves

Also known as: Cave Dive · Geniki Caves · Cayos Geniquí — caves · The Caves

Dive siteFrom Puerto Rico Dive Sites, the sourced field guide

Geniquí Caves

RegionCulebra
MunicipalityCulebra
IslandCulebra
AccessBoat dive
Site typeCaves & swim-throughs
Depth (reported range)20–75 ft (6–23 m)Single source (current tier 3)
HazardsOverhead environment, unexploded ordnance (Coast Pilot: Navy advises UXO in the immediate offshore vicinity of this cay; mariners to use extreme caution), Current
Protected areaCulebra National Wildlife Refuge
LocationApproximate area shown on the map (within about 300 m).Location evidence: Approximate area[7]
ConfidenceLow confidence
Last researched2026-10-17

Overview

Geniquí Caves is a dive at the Cayos Geniquí, off Culebra, where underwater tunnels form an overhead environment. Heads up: caves and tunnels have no direct way up; a local operator lists the tunnels for advanced divers, explored by lamplight, and a 1999 operator page told divers to bring a light on its guided cave dive. The operator gives depths of 20 to 75 feet; a 1998 guide entry that probably describes the same caves gave 35 to 80 feet. A 2012 refuge plan lists the Cayos Geniquí among the islets of the Culebra National Wildlife Refuge.[1][2][3][4]

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Heads up: Overhead environment · unexploded ordnance (Coast Pilot: Navy advises UXO in the immediate offshore vicinity of this cay; mariners to use extreme caution) · Current. See safety notes

Site characteristics

  • Caves & swim-throughs[1]

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Experience & conditions

  • Aqua Adventure: “operator: the caves give advanced divers underwater tunnels to explore by lamplight”[1]
  • Aqua Adventure: “tunnels for advanced divers”[1]

Attributed descriptions from sources, not our rating. Conditions vary; your training, experience and the day’s conditions decide.

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Recent diver reports

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First-hand reports from divers, reviewed before they appear. Conditions change daily; a report describes one day.

Safety considerations

  • Overhead environment — tunnels/caves[1]
  • Overhead environment[1]
  • unexploded ordnance (Coast Pilot: Navy advises UXO in the immediate offshore vicinity of this cay; mariners to use extreme caution) — Coast Pilot names Cayos Geniqui among the cays with UXO in the immediate offshore vicinity[5]
  • Current — about 1.5 knots between Cayo Norte and Cayos Geniqui[5]
  • Overhead environment — cave dive (overhead environment) (older report)[2]

What to know

  • Overhead environment: you can't go straight up. Don't go inside without wreck or cave training. More →
  • Follow the 3Rs. Recognize: treat anything that might be a munition as extremely dangerous. Retreat: don't touch or move it; leave calmly the way you came. Report: call 911 and say what you saw and where. More →
  • Strong current possible. Don't fight it, stay with your buddy, use the ascent line and carry a surface marker buoy. More →

Ocean conditions change daily. Dive within your training, plan with current local information and consider a local professional guide. Water safety guide.

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Protected area

  • Culebra National Wildlife Refuge (Refugio Nacional de Vida Silvestre de Culebra)

    National Wildlife Refuge · U.S. Fish and Wildlife Service · Site position falls inside the official boundary[6]

    NOAA's MPA Inventory classifies this area's protection level as "Uniform Multiple Use"; fishing: restrictions unknown.[6]

Regulations change. Check with DRNA (Departamento de Recursos Naturales y Ambientales) before diving.

Depth reports by source

ReportedSourceStatus
20–75 ft (6–23 m)Aqua Adventure[1]Current source
35–80 ft (11–24 m)Colleen Ryan & Brian Savage / Complete Dive Guide Publications[3]Historical (1998)

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Historical record

What a historical source reported at the time. Not verified as current — access, moorings, reef condition and names may have changed.

Listed as “The Caves” · 35–80 ft (11–24 m) · 1998[3]

  • boat
  • cave
  • exposure: often rough seas
  • current: can be strong
  • surge: waves break heavily on surface rocks — buoyancy control critical
  • overhead: long tunnels, may require finning against current
  • ~40 ft tunnel through to island's north side
  • narrow high tunnel to a cave ~20 ft across with two ~20 ft exit tunnels

Match to this modern site is probable; see research notes.

See also

Straight-line distance only — not travel time, and not necessarily reached from the same departure point.

Sources & verification

Last researched: 2026-10-17 · Last independently verified: not yet field-verified · Confidence: Low confidence

  1. 1.Scuba Diving in Culebra — Aqua Adventure · Dive operator · Tier 3: Corroborating · accessed 2026-09-25
  2. 2.Cave Dive - Geniqui Caves — Culebra Divers (1999-10-08) · Dive operator · Tier 2: Specialist · historical
  3. 3.The Complete Diving Guide: The Caribbean, Volume 3 (Puerto Rico, US Virgin Islands, British Virgin Islands) — Colleen Ryan & Brian Savage / Complete Dive Guide Publications (1998) · Historical guide · Tier 3: Corroborating · historical
  4. 4.Culebra National Wildlife Refuge Comprehensive Conservation Plan — U.S. Fish and Wildlife Service (2012-09) · Government · Tier 1: Primary / authoritative · accessed 2026-10-14
  5. 5.U.S. Coast Pilot 5, Chapter 13 — Puerto Rico (20 Sep 2026 edition) — NOAA Office of Coast Survey (2026-09-20) · Government · Tier 1: Primary / authoritative · accessed 2026-09-26
  6. 6.NOAA Marine Protected Areas Inventory 2024 (feature service NOAA_MPA_Inventory_2023), State = PR — NOAA NOS Office of National Marine Sanctuaries - MPA Center (2024) · Government dataset · Tier 1: Primary / authoritative · accessed 2026-09-25
  7. 7.Geographic Names Information System (GNIS) — Domestic Names, Puerto Rico — U.S. Geological Survey (2026-08-28) · Government dataset · Tier 1: Primary / authoritative · accessed 2026-10-17

Facts are summarised in our own words from the sources above; we do not reproduce operators’ or publishers’ descriptions. How confidence is assigned.