Plizio Visual Lab

Great Bahama Bank

Plizio editorial teamUpdated: Jun 2026Data Sources

Sea

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The Great Bahama Bank is a massive submerged limestone platform dominating the western portion of the Bahamian archipelago, covering an area of approximately 100,000 square kilometers. Geologically, it consists of calcium carbonate sediments accumulated over millions of years from marine skeletal remains, reaching thicknesses of over 4,500 meters in some sections. The water covering the bank is remarkably shallow, typically ranging between 2 and 10 meters deep, which produces the brilliant turquoise hue visible from space. This shallow environment is a highly productive ecosystem, hosting extensive seagrass meadows and coral reefs that provide essential habitats for the Queen Conch and various shark species. The bank is bordered by deep oceanic trenches and channels, such as the Florida Straits and the Tongue of the Ocean, which drop precipitously to depths exceeding 2,000 meters. The hydrological dynamics are largely driven by tidal currents, which facilitate the formation of unique ooid sands, a significant geological feature of the region.

Location: Bahamas
Nearby: Nicolls Town (14 km)

Best time to visit & climate

The most pleasant time to visit is Jan, Feb, Dec.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	22	23	24	25	27	28	29	29	29	27	25	24
Rain mm	35	34	41	65	137	166	146	170	178	125	64	39

📋 Practical info

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Getting there

This truly enormous expanse of shallow ocean is typically accessed by chartering private boats, joining fully organized group snorkeling tours, or taking relaxing, scheduled inter-island ferries.

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Best season

Late spring straight through mid-summer generally has the calmest seas and by far the very best underwater visibility, making it absolutely handy for long days of boating and extensive snorkeling.

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Terrain & paths

A seemingly endless underwater plateau composed of extremely fine pristine white carbonate sand, where the crystalline turquoise waters are remarkably often only a few meters deep for miles on end.

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What to bring

Quality sunglasses with high UV protection, strictly reef-safe sunscreen, and high-end snorkeling equipment are completely essential for safely enduring long days out on the highly reflective water.

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Parking

Travelers usually begin their marine excursions directly from well-equipped coastal marinas or public docks across the islands, where safe, long-term vehicle parking is almost always readily available.

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Safety

Safe navigation requires significant local knowledge due to constantly shifting sandbars and treacherous coral heads hidden just beneath the surface; always follow the lead of licensed, experienced captains.

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Time needed

Popular excursions range broadly from half-day guided snorkeling trips to highly relaxed, multi-day sailing adventures entirely spent slowly traversing this exceptionally scenic and bustling marine environment.

Geography

Coordinates

24.50000, -78.00000

Facts

Covers approx. 100,000 square kilometers
Typical water depth is 2 to 10 meters
Limestone thickness exceeds 4,500 meters
Visible from space as a turquoise patch
Bordered by the deep Tongue of the Ocean
Critical habitat for the Queen Conch

Explore nearby

Notable places around

Andros Island3 km · NWExplore →

Crabbing on Andros7 km · NEExplore →

Andros Mangrove Forests11 km · NExplore →

Goose River12 km · SExplore →

Nicolls Town14 km · EExplore →

Coakley Cay Relief17 km · NExplore →

Andros Barrier Reef22 km · NExplore →

Fresh Creek25 km · NExplore →

Route planner — Car & Motorhome

Where do you start? We build the route here, with stops and country notes along the way.

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Overnight stops

Vehicle

Only stops with (optional): 💧 Water ♻️ Disposal 🔌 Power 🚻 Toilets 🚿 Shower

Sights nearby

Frequently asked questions

What is the Great Bahama Bank?

A vast, shallow underwater limestone plateau surrounding much of the Bahamas.

How deep is the water there?

Mostly very shallow, often only 2 to 20 meters deep.

Is it a good place for diving?

Yes, visibility is fantastic, and there are plenty of corals and fish.

What is the 'Tongue of the Ocean'?

A deep trench at the edge of the bank that drops down to 2,000 meters.

Is the bank dangerous for ships?

Yes, due to the shallow water, navigation for large ships is difficult.

Great Bahama Bank: where is it located?

Great Bahama Bank is located in Bahamas.

Great Bahama Bank: when is the best time to visit?

The most pleasant time to visit is Jan, Feb, Dec.

Great Bahama Bank: why is it worth visiting?

The Great Bahama Bank is a massive submerged limestone platform dominating the western portion of the Bahamian archipelago, covering an area of approximately 100,000 square kilometers.

View on map → The Top 50 Attractions → OpenStreetMap →