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A scuba diver explores a vibrant coral reef with fish, showcasing underwater marine life.
📷 Leonardo Lamas · Pexels

Molasses Reef

3.9 — based on 20 community signals
4.2 12 species 28 contributors

Molasses Reef is a year-round dive destination in the Florida Keys National Marine Sanctuary, known for healthy coral and abundant marine life.

⭐ Best for beginners.

🐢 MPA · Florida Keys National Marine S… updated 4 months ago
Difficulty
Beginner
MPAShore entryFamily-friendlyPhotoFriendly

At a glance

Activity
dive
Difficulty
beginner
Best months
Year-round
Marine life
Great barracuda

Top operators here

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Map

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Molasses Reef location map © Google · Map data © Google, contributors
Open in Google Maps

Conditions today

Conditions

Open-Meteo
Wind
kn
Wave
0.48 m
Water
30.9°C
Tide (7 days)
range: 0.59m

Today: High 02:00 (+0.15m), Low 09:00 (-0.3m)

+0.2 m0 m-0.4 m
▲ 02:00 · +0.15m ▼ 09:00 · -0.3m ▲ 16:00 · +0.04m ▼ 21:00 · -0.19m Now +0.1m
Fri 18Sat 19Sun 20Mon 21Tue 22Wed 23Thu 24
UV— · — Air PM2.53 · good
Day Wind Wave UV Rain
09-18 0.58
09-19 0.54
09-20 0.26
09-21 0.48
09-22 0.42
09-23 0.58
09-24 0.32

About this spot

Molasses Reef sits within the Florida Keys National Marine Sanctuary, one of the most protected coral ecosystems in U.S. waters. The reef shows strong coral health with no bleaching stress, making it a reliable destination for divers seeking vibrant reef structure and diverse marine life. The site attracts divers year-round, offering consistent conditions and easy access from the Keys. The reef supports a rich variety of fish and invertebrate species documented through 12 recorded species observations. Divers regularly encounter tropical fish, crustaceans, and other reef inhabitants in their natural habitat. The protected status means strict adherence to sanctuary rules: no collecting, no anchoring on coral, and respect for marine life. Community video documentation shows what to expect underwater, giving divers a preview before arriving. The sanctuary designation ensures the reef remains healthy and well-managed for long-term diving access. Molasses Reef is ideal for divers who want established reef diving without traveling far from the continental U.S.

📖 Guide: Diving in the United States: 87 Sites From Springs to Open Ocean

Best months

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Marine life

Great barracuda

Dive types

Reef

Trip essentials

Everything you need before you pack — checklist, sun, logistics.

Trip checklist

  • 🛂 Visa-free or visa-on-arrival
  • 📜 C-card + dive insurance (DAN)
  • 📔 Dive logbook
  • 🧴 Reef-safe sunscreen SPF 50+
  • 🔌 Plug type A/B · 120V adapter
  • 💊 Seasickness meds + ear drops
  • 📱 Offline maps + emergency contact

Quick facts

  • 🌓 Moon First quarter · 48%
  • GPS
Sustainability disclosures
🌍 CO2 footprint LHR ↔ 7178km · ~1651kg · €30

FAQ

When is the best time to dive Molasses Reef?

Molasses Reef is diveable year-round. Florida Keys conditions remain stable throughout the year, though winter months typically offer slightly better visibility and cooler water temperatures.

What marine life can I expect to see?

Twelve species have been recorded at Molasses Reef, including tropical fish and reef invertebrates. The reef's protected status and healthy coral mean abundant life. Watch community videos to see common sightings before your dive.

What rules apply to diving in the Florida Keys National Marine Sanctuary?

No collecting marine life or coral is permitted. Do not anchor on coral. Follow sanctuary guidelines for anchor placement and respect all mooring buoys. Violations carry fines.

How do I get to Molasses Reef?

Molasses Reef is accessed via dive operators based in the Florida Keys. Book with a local shop that has current sanctuary permits and mooring buoy access. Expect a boat ride from Key Largo or Islamorada.

Operators near this spot

Dive centres, kite & surf schools within 10 km, sourced from OpenStreetMap.

Spiegel Grove

8.1 km
Dive centre

Recently spotted by divers

iNaturalist →

Verified marine species observations

63 records · 39 species · sources: OBIS, GBIF

Urobatis jamaicensis

Elasmobranchii · Urotrygonidae
GBIF
Last seen:
3 Jan 2026
×1records

Ecteinascidia turbinata

Ascidiacea · Perophoridae
OBIS
Last seen:
16 Apr 2024
×1records

Nereididae

Polychaeta · Nereididae
OBIS
Last seen:
2 Apr 2024
×1records

Geodia neptuni

Demospongiae · Geodiidae
OBIS
Last seen:
7 Apr 2023
×1records

Hydrozoa

Hydrozoa
OBIS
Last seen:
17 Oct 2021
×1records
Depth:
30 m

Trichechus manatus latirostris

Florida manatee
Mammalia · Trichechidae
OBIS
Last seen:
18 Jul 2020
×1records

Leptocardii

Leptocardii
OBIS
Last seen:
6 Jan 2020
×1records
Depth:
0–37 m

Aetobatus narinari

Elasmobranchii · Aetobatidae
OBIS
Last seen:
20 Sept 2016
×1records
Depth:
5 m

Scyphoproctus platyproctus

Polychaeta · Capitellidae
OBIS
Last seen:
8 Jun 2015
×1records
Depth:
52 m

Hymedesmia

Demospongiae · Hymedesmiidae
OBIS
Last seen:
27 Sept 2011
×1records
Depth:
167 m

Thor

NA
Malacostraca · Thoridae
OBIS
Last seen:
23 Sept 2011
×2records
Depth:
2–2 m

Hippolyte pleuracantha

NA
Malacostraca · Hippolytidae
OBIS
Last seen:
23 Sept 2011
×2records
Depth:
2–2 m

Data: 187,991 observations from OBIS (Ocean Biodiversity Information System) and GBIF (Global Biodiversity Information Facility). CC-BY 4.0.

See this spot in action

YouTube videos — click to play.

Molasses Reef

Dive Documentaries

Diving in Florida: Molasses Reef, French Reef, Benwood & Spiegel Grove dive sites

Karim Lounes
💬 3 top comments
  • Back in 1971 I dove the Molasses and French reefs and it was my very first series of clear warm water diving I had ever done. It was quite the experience! The next time I was there was in 2001 and was SHOCKED at how much of the coral reef structure had deteriorated. This video is about what I saw then, so at least I'm glad it wasn't gotten worse.

    @GrantOakes · 👍 10
  • My wife and I just got open water certified and looking forward to diving in Key Largo—great video and thank you!

    @brianwilkinson2679 · 👍 1
  • Ty so much, I was able to scuba with a sea turtle in Key Largo, I was so excited to see her and all the colorful fish and corral, first time diving down there and the best dives I've ever experienced, we just got back a few days ago and I want to go back already. My video are no where near as colorful or steady as yours, some of them were but it was my first time using a go pro under water, They

    @DIXIEDAWGS · 👍 1

Key Largo, Florida Diving - The Molasses Reef - and Blue Heron Bridge

Karim Lounes
💬 3 top comments
  • very educated video, you can learn a lot from them!

    @jhonvilla7451 · 👍 1
  • Some of the best oceanic content on the platform. I grew up watching videos like this when we would visit the Florida Keys every summer. My brother and I would watch for hours and eat blackened fish sandwiches. Thank you for sharing.

    @baxoutthebox5682 · 👍 7
  • Your footage is gorgeous. I like how you share information on the various species. ✌️

    @JasonPriebe · 👍 1
wind peaks Apr-Jan-Mar, calmest Aug-Jul-Sep, dry Jan-Dec.

5-year monthly climate

60 samples
0 5 10 15 20 25 JFMAMJJASOND
p25–p75 range Median Wind (kn) Air (°C)
Visibility (month-by-month)
Best: Mar (100/100) Worst: Sep (0/100) Now: Sep (0/100) NOAA MODIS Aqua · 5y mean

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