Devils Bottom

Isla Del Cano Peninsula De Osa, Costa Rica

Depth

40m

Visibility

10m - 30m

Entry

Boat

Experience Level

Advanced

Devils Bottom

Isla Del Cano Peninsula De Osa, Costa Rica

Depth

40m

Visibility

10m - 30m

Entry

Boat

Experience Level

Advanced

About Devils Bottom

A deep dive situated on the Western side of Isla Del Cano. Start your dive in shallow waters and gently slope to a maximum depth of 40 meters to find out why this dive is so popular. Surrounded by sand and a large variety of marine life you will find a spectacular coral encrusted reef. Ideal for underwater photography and drifting. Only suitable for advanced level divers.

Devils Bottom Dive Info

Terrain & Features

Other, Reef, Deep

Entry Type

Boat

Max Depth

40m

Visibility Range

10m – 30m

Experience Level

Advanced

Best Gas Mix

21% – 28%

O₂

CNS Load (20 min)

13% at 38m / 29%

O₂

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Marine Life

Barracudas
Eels
Game Fish
Pelagic Fish
Rays
Sharks
Various

Weather Conditions

Water Temperature ℃

Dive Operators near Devils Bottom

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Location

Dive Site Hazards

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.

Gradual Narcosis Onset — Narcosis may develop slowly, making self-assessment unreliable.

Task Fixation at Depth — Cognitive narrowing at depth can reduce awareness of time and ascent rate.

Increased Gas Density Breathing Load — Higher gas density at depth increases work of breathing.

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