Grecian Rocks Reef

Florida, United States

Depth

Visibility

- - -

Entry

Boat

Experience Level

Beginner

Grecian Rocks Reef

Florida, United States

Depth

Visibility

- - -

Entry

Boat

Experience Level

Beginner

About Grecian Rocks Reef

Half mile long, crescent shaped reef. Very interesting and unusual diving sites in Key Largo. Well developed and enveloped in coral formations. 23 meters south, you will find a old spanish canon that was placed there by park rangers. Alot to explore and discover.

Grecian Rocks Reef Dive Info

Terrain & Features

Reef, Drift

Entry Type

Boat

Max Depth

Visibility Range

— – —

Experience Level

Beginner

Best Gas Mix

21%

O₂

CNS Load (45 min)

6% at 6m / 36%

O₂

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Marine Life

Barracuda
Princess Parrotfish
Queen Parrotfish
Stoplight Parrotfish
Various

Weather Conditions

Water temperature (℃)

Air temperature range (℃)

Average air temperature (℃)

Wind speed (km/h)

Precipitation (mm)

Dive Operators near Grecian Rocks Reef

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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.

Eddy Pull-Off Zones — Eddies behind structures can pull divers away from the main drift line.

Delayed Surface Pickup — Strong current can exceed surface tracking assumptions, delaying boat pickup.

Vertical Current Shear — Currents may vary by depth, causing vertical separation even when divers stay together.

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