Puerto Rico Dive Sites

Fajardo & La Cordillera · Fajardo

Cayo Lobos

Also known as: Lobos · Isla de Lobos · Los Lobos · Jurassic Park reef

Depth
6–35 ft (2–11 m)
Access
Boat dive
Type
—
Confidence
High confidence

Overview

Cayo Lobos is a privately owned island off Fajardo with several shallow boat-dive sites around it, from about 6 to 35 ft. The reef is cut by holes, channels and caves, earning one stretch the nickname Jurassic Park reef, and spotted eagle rays are reported. Operators rate it beginner to intermediate and good for navigation practice. It is reported to lie within Arrecifes de la Cordillera Natural Reserve; check current DRNA rules.[1][2][3]

Habitat & marine life

  • reef with holes and channels[1]
  • unusual structures and caves[2]
  • spotted eagle rays[1]

Marine life is what sources report having seen or commonly seeing — not a guarantee.

Access

Experience & conditions

  • Aqua Adventure (Fajardo/San Juan operator; also scubapuertorico.net): “operator: beginner to intermediate; good for navigation practice”[1]

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

Safety considerations

No site-specific hazards are recorded in our sources. That does not mean there are none.

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

Protected area

  • Arrecifes de la Cordillera Natural Reserve (Reserva Natural Arrecifes de la Cordillera)

    Natural Reserve · Puerto Rico Department of Natural and Environmental Resources · Reported by a source as within this area[3]

    NOAA's MPA Inventory classifies this area's protection level as "Uniform Multiple Use"; fishing: no site restrictions. Anchoring: restricted.[4]

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

Depth reports by source

ReportedSourceStatus
6–35 ft (2–11 m)Aqua Adventure (Fajardo/San Juan operator; also scubapuertorico.net)[1]Current source
to 35 ft (11 m)Simpatico Charters (Villa Marina, Fajardo)[2]Current source

Sources & verification

Last researched: 2026-10-04 · Last independently verified: not yet field-verified · Confidence: High confidence

  1. 1.Scuba Diving in Fajardo — Aqua Adventure (Fajardo/San Juan operator; also scubapuertorico.net) · Dive operator · Tier 2: Specialist · accessed 2026-09-25
  2. 2.Scuba Diving | Simpatico Charters — Simpatico Charters (Villa Marina, Fajardo) · Dive operator · Tier 2: Specialist · accessed 2026-09-25
  3. 3.Reserva Natural Arrecifes de la Cordillera (brochure) — DRNA / Programa de Manejo de la Zona Costanera de Puerto Rico (NOAA-funded) (2002) · Government · Tier 1: Primary / authoritative · accessed 2026-09-25
  4. 4.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

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