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Scuba diver explores colorful coral reef teeming with marine life in the Galápagos Islands.
📷 Walter Torres · Pexels

Cocos Island — Bajo Alcyone

Bajo Alcyone is an advanced dive site off Cocos Island, Costa Rica, featuring deep reefs and strong currents in a protected marine area.

⭐ Best for advanced divers chasing chasing pelagics.

🐢 MPA · Área Marina de Manejo Montes S… updated 4 months ago
Dificultad
Avanzado
Profundidad
15–40 m
AdvancedOnlyBoatOnlyMPAPelagic hotspot
+1 más
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De un vistazo

Actividad
dive
Dificultad
advanced
Profundidad
15–40 m

Mapa

Este spot Spots cercanos
© OpenStreetMap · CARTO
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Condiciones hoy

Condiciones

Open-Meteo
Viento
9.5 kn
Olas
1.46 m
Agua
29.8°C
N E S W
Wind direction (7d)
Primary: WSW (53%)
Now: SSW (207°)
Marea (7 días)
amplitud: 1.65m

Próxima: Baja a las 01:00 (-0.1m)

+1.3 m0 m-0.4 m
▼ 01:00 · -0.1m ▲ 07:00 · +1.07m ▼ 14:00 · -0.13m ▲ 20:00 · +0.91m Ahora +0.1m
Vie 18Sáb 19Dom 20Lun 21Mar 22Mié 23Jue 24
UV8.9 · very high Aire PM2.51 · good 05:38 17:45
Día Viento Olas UV Lluvia
09-18 12.6 1.48 9 18mm
09-19 12.6 1.44 9 15mm
09-20 13.7 1.28 5 21mm
09-21 18 1.44 3 26mm
09-22 13.3 1.46 2 24mm
09-23 13.5 1.36 8 21mm
09-24 14.3 1.28 9 38mm

About this spot

Bajo Alcyone sits within the Área Marina de Manejo Montes Submarinos, a managed marine protected area surrounding Cocos Island. This advanced-only dive reaches depths of 15 to 40 meters and demands solid current-handling skills and deep-diving experience. The site's underwater topology creates dynamic conditions typical of offshore pinnacles and seamounts in the Eastern Pacific. Cocos Island itself sits roughly 500 kilometers southwest of mainland Costa Rica, making it a remote destination accessible only by liveaboard dive operators. The island and its surrounding waters fall under strict marine protection, which means all diving is regulated. Bajo Alcyone draws divers seeking the technical challenge and the open-ocean environment. Conditions here shift seasonally, but the site remains diveable year-round for experienced teams. Current can be strong, visibility varies with the season, and water temperature reflects tropical Pacific conditions. The protected status means the reefs here support robust marine ecosystems, though specific species data is not cataloged in standard references. Divers report encountering pelagic species typical of deep oceanic reefs.

📖 Guía: Buceo en Costa Rica: 10 sitios donde los tiburones se encuentran con las tortugas

Tipos de buceo

PelágicoPared

Esenciales del viaje

Todo lo que necesitas antes de hacer la maleta — checklist, sol, logística.

Trip checklist

  • 🛂 Visa-free or visa-on-arrival
  • 📜 C-card + dive insurance (DAN)
  • 📔 Dive logbook
  • 🧴 Reef-safe sunscreen SPF 50+
  • 🔌 Plug type A/B · 120V adapter
  • 💊 Seasickness meds + ear drops
  • 📱 Offline maps + emergency contact

Quick facts

  • 🌓 Moon First quarter · 47%
  • GPS
Información de sostenibilidad
🌍 CO2 footprint MAD ↔ 9059km · ~2084kg · €38

Desde tu país de salida

Estados Unidos
Puntuación de origen: 89/100
  • Visado: Sin visado · 90 días máx.
  • Vuelo: 12h · directo
  • Jet-lag: 1h este · 1 día de recuperación

Preguntas frecuentes

When is the best time to dive Bajo Alcyone?

Cocos Island is diveable year-round. Weather and sea state vary by season, but the protected marine area remains open to liveaboard operations throughout the year. Plan around your tolerance for travel distance and your schedule rather than strict seasonal closures.

What depth and experience level is required?

Bajo Alcyone is an advanced-only site. Dives reach 15 to 40 meters, and currents can be strong. You'll need solid buoyancy control, deep-diving certification or equivalent experience, and comfort navigating offshore pinnacles. Deep diver training is highly recommended.

What marine life can I expect to see?

Cocos Island's protected waters support abundant pelagic life. Specific species logs for Bajo Alcyone are limited, but the site's deep-reef environment typically hosts sharks, large fish schools, and other oceanic species. Conditions vary per dive.

How do I access Cocos Island and get permits?

Cocos Island is only accessible by liveaboard dive vessel. It sits within a protected marine area managed by Costa Rican authorities. All diving is governed by permit requirements and liveaboard regulations. Book through an operator licensed for Cocos Island operations.

Observaciones verificadas de especies marinas

71 registros · 14 especies · fuentes: OBIS, GBIF

Sphyrna lewini

Elasmobranchii · Sphyrnidae
GBIF
Última observación:
31 ene 2026
×18registros

Triaenodon obesus

Elasmobranchii · Carcharhinidae
GBIF
Última observación:
31 ene 2026
×18registros

Taeniurops meyeni

Elasmobranchii · Dasyatidae
GBIF
Última observación:
31 ene 2026
×11registros

Aetobatus ocellatus

Elasmobranchii · Myliobatidae
GBIF
Última observación:
31 ene 2026
×4registros

Phataria unifascialis

Asteroidea · Ophidiasteridae
GBIF
Última observación:
31 ene 2026
×4registros

Tripneustes depressus

Echinoidea · Toxopneustidae
GBIF
Última observación:
30 ene 2026
×1registros

Carcharhinus galapagensis

Elasmobranchii · Carcharhinidae
GBIF
Última observación:
29 ene 2026
×2registros

Pentaceraster cumingi

Asteroidea · Oreasteridae
GBIF
Última observación:
29 ene 2026
×1registros

Panulirus penicillatus

Malacostraca · Palinuridae
GBIF
Última observación:
28 ene 2026
×3registros

Panulirus gracilis

Malacostraca · Palinuridae
GBIF
Última observación:
28 ene 2026
×2registros

Acanthaster planci

Asteroidea · Acanthasteridae
GBIF
Última observación:
27 ene 2026
×2registros

Siphonaria gigas

Gastropoda · Siphonariidae
GBIF
Última observación:
27 ene 2026
×2registros

Datos: 187.991 observaciones de OBIS (Ocean Biodiversity Information System) y GBIF (Global Biodiversity Information Facility). CC-BY 4.0.

Si las condiciones no funcionan

Actividades cerca o spots alternativos — sigue con tu viaje.

See this spot in action

YouTube videos — click to play.

Cocos Island Diving at Alcyone II

Jean-Marc Thimon

Dive 7 – Alcyon – Cocos Island

Nick Uresin Scuba Diaries

Cocos Island Diving at Alcyone

Jean-Marc Thimon

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