Dive Site: Cayo Blanco

About Cayo Blanco

Cayo Blanco, located in the vicinity of Cuba's Zapata Swamp, presents a truly distinctive dive experience with its remarkable underwater topography. The dive site is characterized by a vertical wall that commences at a surprisingly shallow depth of just 7 meters, descending steeply past 40 meters. This dramatic drop-off features a notable rupture or crack in the wall, which itself extends to considerable depths. The wall's impressive structure is adorned with a profusion of sponges of various forms, especially concentrated to the north of this significant crack. Stony corals and gorgonians also contribute to the rich benthic landscape. Marine life at Cayo Blanco is active, with schools of jacks and barracudas frequently observed. Inside the barrel-like rupture, schools of permit often take shelter, adding to the dynamic environment. Divers can also encounter colonial anemones harboring small shrimp, and rays are occasionally spotted. The site consistently offers great visibility, enhancing the exploration of its unique features and diverse inhabitants. Accessibility to Cayo Blanco is straightforward, and the site is often included in itineraries exploring the Zapata Swamp's dive offerings. Divers typically navigate along the impressive wall, exploring its many ledges and crevices while observing the rich coral and sponge growth. The consistently clear waters make for an immersive and rewarding experience, suitable for various skill levels given the shallow start of the wall.

Dive site facts: Cayo Blanco

Depth

7–40+ m

Current

Moderate

Visibility

Great

Water temperature

24–29°C

Entry

Boat

Level

Open Water Diver recommended

Dive type

Wall, coral

Night dive

Possible (behind reef crest)

Region / port

Zapata Swamp, Cuba

Coordinates

23.1250° N, 81.0850° W

Conditions & Currents

Currents at Cayo Blanco are generally moderate, typical of the region. While specific current strength can vary, it is advisable to consider the prevailing current direction to avoid strenuous swimming. Visibility is consistently great, often ranging between 30 and 40 meters in the surrounding Cuban waters, enhancing the clarity of the vertical wall and marine life. Water temperatures remain comfortably warm, typically between 24°C and 29°C throughout the year, allowing for dives with minimal thermal protection. Entry into the water is generally calm, often facilitated by liveaboard tenders. Divers should anticipate a multi-level dive along the wall, carefully monitoring depth and no-decompression limits due to the deep drop-off.

Marine life & sighting chances

Sponges

common

Jacks

common

Barracudas

occasional

Permit

occasional

Colonial anemones

common

Shrimp (in anemones)

common

Rays

occasional

Octopus

occasional

Squid

occasional

Moray eels

occasional

Balloon fish

occasional

Crabs

occasional

Nudibranchs

occasional

Dive profile & how the dive runs

Diving at Cayo Blanco typically begins with a boat entry to the reef crest, where the vertical wall dramatically starts at 7 meters. Divers descend along this impressive wall, which plunges past 40 meters, allowing for exploration of a significant rupture or crack in the rock face. The route often involves navigating parallel to the wall, observing the dense sponge growth, particularly concentrated north of the main crack, along with stony corals and gorgonians. Keep an eye out for schools of jacks and barracudas, and permit schooling inside the wall's crevices. The dive progresses along the wall, with careful monitoring of depth due to the sheer drop-off. Turnaround is usually dictated by air consumption and no-decompression limits, ascending gradually along the wall to shallower sections. The safety stop is typically conducted along the reef crest between 5-7 meters, offering opportunities for observing colonial anemones and various small invertebrates. Night dives are also possible behind the reef crest in 1-3 meters of water, revealing nocturnal species like octopus and moray eels.

Underwater photography

Cayo Blanco, with its dramatic vertical wall and excellent visibility, offers fantastic opportunities for wide-angle photography. A wide-angle lens is ideal for capturing the expansive wall structure, the deep rupture, and schools of fish like jacks and permit. For macro enthusiasts, the colonial anemones and their resident shrimp, as well as nudibranchs found during night dives, present excellent subjects; a macro lens will be beneficial here. Utilize strobes to bring out the vibrant colors of the sponges and corals that adorn the wall at various depths. Maintain excellent buoyancy control to avoid contact with the delicate coral and sponge formations and to remain stable for clear shots, especially when focusing on smaller creatures. The consistently great visibility makes focusing easier, but internal light sources are still crucial for color accuracy and detail.

Combine with nearby dive sites

• Pared de Cayo Blanco

  Adjacent to Cayo Blanco Canyon, featuring a vertical wall from 6m with abundant sponges, stony corals, and gorgonians.

• Cañón de Sigua

  Near Key Sigua, a seagrass bed dropping to 15m, then a sandy slope to 24m before a vertical wall, with black coral and goliath grouper.

• Cayo Sigua

  A sandy area at 12m leading to a ridge before a wall drop, notable for purple tunicates and round anemones.

• Blue Hole - Sigua

  A unique blue hole with an entrance at 4m and vertical walls plunging to 83m, housing lobsters, nudibranchs, and snappers.

• Corona de Cayo Cobo

  A 30m wide coral bar with drops on both sides forming vertical walls, rich in sponges, corals, and schools of grunts and spadefish.

Getting there & logistics

Cayo Blanco is typically accessed via liveaboard yachts or dive excursions from the Zapata Swamp region, an area recognized by UNESCO. Dive trips generally embark from local ports that serve the Zapata Swamp. While specific trip durations vary, dive operators often combine Cayo Blanco with other sites in the area, such as those around Cayo Sigua, into multi-day itineraries. Travelers usually fly into Havana or other major Cuban airports and arrange transfers to the departure point. There are no specific individual park fees mentioned for Cayo Blanco itself, but overall dive package costs usually cover permits and operational expenses. It's advisable to confirm entry requirements and dive center affiliations well in advance of travel.

Safety & environment

For diving in Cuba, including at Cayo Blanco, it is essential to carry comprehensive dive insurance that covers recompression chamber treatment and medical evacuation. Cuba boasts a national network of hyperbaric chambers in key locations like Havana, Matanzas, and Santiago de Cuba, with specialized medical services for subaquatic medicine available 24 hours a day. While Cayo Blanco itself is a wall dive, divers should be mindful of its deep drop-off beyond 40 meters, ensuring careful depth and no-decompression limit management. Moderate currents can be present, requiring attention to dive planning and boat entry/exit procedures. Always dive with a reputable operator, follow dive guide instructions, and avoid venturing into overhead environments unless specifically trained and equipped for cavern or cave diving.

Who it suits — and who it doesn't

FAQ

Cayo Blanco FAQ

Liveaboards diving Cayo Blanco

These liveaboards may visit Cayo Blanco on selected itineraries — the exact dive sites depend on departure, weather and conditions.

Jardines Avalon Fleet

Cuba

20 guests35.05 m

$494/day