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Butterfly Cave

Butterfly Cave

Lonian Islands, Greece

Depth
Depth Icon

40m

Visibility
Visibility Icon

15m - 45m

Entry
Boat Entry Icon

Boat

Experience Level

Advanced

Butterfly Cave

Lonian Islands, Greece

Butterfly Cave
Depth
Depth Icon

40m

Visibility
Visibility Icon

15m - 45m

Entry
Boat Entry Icon

Boat

Experience Level

Advanced

About Butterfly Cave
Butterfly Cave is a spectacular cave that is visible on surface and accessed from shore. This cave has variable depths leading to 40 m max. It was named after its butterfly shape and hosts many different fish species.

Butterfly Cave Dive Info

Terrain & Features

Wall, Cave, Reef

Entry Type

Boat

Max Depth

40m

Visibility Range

15m – 45m

Experience Level

Advanced

Best Gas Mix

21% – 28%

O2
CNS Load (20 min)

13% at 38m / 29%

O2
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Marine Life
  • Butterfly Fish
  • Eels
  • Lobster
  • Nudibranch
Weather Conditions
Water Temperature ℃
Dive Operators near Butterfly Cave
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Location
Dive Site Hazards

  • 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.

  • 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.

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