Long

reef in Miami Beach

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Details

Open Water

Minimum Recommended Certification

Max Depth	35 ft
Average Depth	20 ft

Access

Temporary Line

GPS coordinates

25° 25.440' N
80° 07.603' W

Frequently visiting operators

	Deco Divers
	Divers Paradise
	Ace Diving

Upcoming trips (26)

Operator	Date	Time	Availability click-to-book	Trip Name click for details
Ace Diving	2025-12-13	13:00	18	Biscayne National Park - 2 Shallow Reefs
Divers Paradise	2026-01-27	11:00	-	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-02-03	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Ace Diving	2026-02-07	13:00	34	BISCAYNE NATIONAL PARK - 2 LOCATIONS
Ace Diving	2026-02-07	13:00	34	BISCAYNE NATIONAL PARK - 2 LOCATIONS
Divers Paradise	2026-02-10	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-02-12	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Ace Diving	2026-02-15	13:00	35	2 SHALLOW REEF AT BISCAYNE NATIONAL PARK
Ace Diving	2026-02-15	13:00	35	2 SHALLOW REEF AT BISCAYNE NATIONAL PARK
Divers Paradise	2026-02-17	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-02-19	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-02-24	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-02-26	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-03-03	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-03-05	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Ace Diving	2026-03-07	13:00	30	Biscayne National Park - 2 shallow locations
Ace Diving	2026-03-07	13:00	30	Biscayne National Park - 2 shallow locations
Divers Paradise	2026-03-10	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-03-12	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-03-14	13:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-03-17	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-03-19	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-03-21	13:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-03-24	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-03-26	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel
Divers Paradise	2026-03-31	11:00	Y	Biscayne National Park Dive and Snorkel Trip, Coral Reef Dive and Snorkel

Best Gas

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Diluent mix

Oxygen 21%

Helium 35%

Nitrogen 47%

Gas prices

Diluent tank	$35.50
O2 tank	$10.00

Diluent

Diluent PPO2 at max depth (35 ft) 0.9 atm

O2 Content Diluent

Set Point 1.2 atm

Set Point

END at max depth (35 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 35 ft - 24 hr min surface interval - m

Calculate NDL

Always use a dive computer

Nitrox

PPO2 at max depth (35 ft) Bottom PPO2 atm

PPO2 at average depth (20 ft) Bottom PPO2 atm

O2 Content

32%

Calculate Best Nitrox

Decompression planning

Site Description

Route

Typical Conditions

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