Alligator

reef in Islamorada

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Details

Open Water

Minimum Recommended Certification

Max Depth	90 ft
Average Depth	45 ft

Access

Permanent Mooring Balls

GPS coordinates

24° 50.895' N
80° 37.164' W

Frequently visiting operators

	Conch Republic
	Key Dives
	Florida Keys Dive Center
	Islamorada Dive Center

🎥 Vogels in Key Largo

Upcoming trips (2)

Operator	Date	Time	Availability click-to-book	Trip Name click for details
Conch Republic Divers	2025-07-27	13:00	3	Alligator
Conch Republic Divers	2025-08-03	13:00	22	Alligator

A moray eel says "hi" to the camera

📸 Pablo Strika

Barrel sponges are found in this dive site

📸 Pablo Strika

Best Gas

show details

Diluent mix

Oxygen 21%

Helium 35%

Nitrogen 47%

Gas prices

Diluent tank	$35.50
O2 tank	$10.00

Diluent

Diluent PPO2 at max depth (90 ft) 0.9 atm

O2 Content Diluent

Set Point 1.2 atm

Set Point

END at max depth (90 ft) ft

He Content Diluent

O2 narcotic?

Loop temperature at depth °F/°C

Loop temperature

Consider H2O vapor?

Gas density g/L

Hypoxic at surface

Calculate Best Diluent

Gas mix

Oxygen Bottom PPO2

Helium Bottom PPO2

Nitrogen Bottom PPO2

Gas prices

Aluminum 80	$10
Steel HP 100	$10
Steel LP 85	$10

NDL at 90 ft - 24 hr min surface interval - m

Calculate NDL

Always use a dive computer

Nitrox

PPO2 at max depth (90 ft) Bottom PPO2 atm

PPO2 at average depth (45 ft) Bottom PPO2 atm

O2 Content

32%

Calculate Best Nitrox

Decompression planning

Site Description

Route

Typical Conditions

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