Cocos Islands, Costa Rica
70m
13m - 38m
Boat
Advanced
Cocos Islands, Costa Rica
70m
13m - 38m
Boat
Advanced
Cave, Drop Off, Shark, Deep
Boat
70m
13m – 38m
Advanced
—
-1% at 68m / 21%
O2No photos yet.
Be the first to share your shots from Dirty Rock. Your photos help other divers plan their trip.
We couldn’t find dive operators near “Dirty Rock”. You can browse all operators in Costa Rica here.
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.
Edge-Accelerated Currents — Currents often strengthen along drop-off edges.
Depth Perception Distortion — Visual contrast can distort perceived depth.
Terrain-Induced Descent — Divers may unintentionally follow terrain downward.
Situational Awareness Loss — Divers may fixate on sharks and lose depth or position awareness.
Subtle Behavioural Shifts — Changes in shark behaviour may be missed without active observation.
Blue-Water Reference Loss — Lack of visual references increases ascent and descent instability.
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.
