Boca Spelonk

Bonaire, Bonaire

Depth

30m

Visibility

10m - 30m

Entry

Boat

Experience Level

Advanced

Boca Spelonk

Bonaire, Bonaire

Depth

30m

Visibility

10m - 30m

Entry

Boat

Experience Level

Advanced

About Boca Spelonk

This East-Side dive site truly is only for the advanced diver. The entry point, waves and surge are very serious, but the best dive for formations, variety, and isolation. Entry is by jumping into the water from a 7-foot cliff with only a single exit in sync with the swells. There is a cave, and it's a very cool cove with waves breaking above the vertical edges of the cove. There is an impressive wall. Also a small cave and pristine coral reef . There is an iron-hulled sailing vessel in 24 meter of water off Boca Spelonk Directions: From Kralendijk follow signs to Lagoen on Kaminda Lagun road. The road will end after going through a lakebed at a bay near Washikemba. Just before you drive off the east side of Bonaire into the ocean you will see a restaurant at the end of the road, and just before this restaurant you will turn left up a dirt road where you'll see a shack up the hill a ways. You will pass to the left of the shack up the hill, and on top of the hill you will take a fork to the right going between two old masonry gate posts. There are some forks off to the right which go over towards the ocean and dead-end, but you'll stay on the main dirt road winding your way toward the Spelonk lighthouse. There will be some more forks when you get closer to the lighthouse that end near it, but again stay on the road going past it several hundred yards north of the lighthouse. You will see some coves before this, but the Spelonk cove is closer to the road with a gradual walk down to the south edge where you enter through a small 3-foot wide crevice.

Boca Spelonk Dive Info

Terrain & Features

Wreck, Reef, Wall, Cave

Entry Type

Boat

Max Depth

30m

Visibility Range

10m – 30m

Experience Level

Advanced

Best Gas Mix

21% – 35%

O₂

CNS Load (25 min)

16% at 28m / 36%

O₂

Multi-Level Dive Planner

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Marine Life

Big Baracudas
Lobster
Morays
Parrotfish

Weather Conditions

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Dive Operators near Boca Spelonk

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Location

Location details missing.

Dive Site Hazards

Deceptive Entry Openings — Openings may become restrictive inside due to angle, collapse, or corrosion.
Surge-Induced Internal Silt Shift — Internal surge can move silt and debris without direct contact.
Partial Overhead Environment — Many wrecks limit direct ascent even without full penetration.

Fine Rust Particle Silt-Out — Disturbed rust particles can rapidly reduce visibility.

Hidden Depth Variations — Complex reef topography can conceal depth changes, leading to unintended profile variations.

Distraction from Marine Activity — High fish activity can distract divers and delay depth or gas awareness.

Rapid Surge Direction Changes — Surge near reef structures can reverse direction quickly, pushing divers sideways into unexpected areas.

Unstable Visual Ascents — Relying on wall visuals can destabilise ascents.

Gradual Depth Creep — Lack of visual bottom reference can cause unnoticed descent.

Unsignalled Downcurrents — Downcurrents can form without visible indicators.

Remote Silt Disturbance — Silt can be disturbed metres away from the source.

Rapid Stress Escalation — Stress can increase sharply when visibility or navigation degrades.

High Cognitive Load Navigation — Complex passages increase mental workload even on a line.

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