Thunderball Grotto
📍 Exumas, near Staniel Cay
A blue-lit underwater cave with a domed opening you can swim through — the film set for a Bond underwater scene, thick with fish and shimmering shafts of light. A quintessential snorkel stop.

Sandy flats, blue holes and the Exumas' shallow crystal sea.
Double Fathom ranking
Shallow-water playground
Famously clear Bahamian shallows, quirky Exumas experiences and a famous underwater grotto — a lively, boat-based trip where the water is rarely deeper than it looks.
The distinctive underwater sights worth planning around. Descriptions are curated planning info — always verify local access, rules and conditions before you set out.
📍 Exumas, near Staniel Cay
A blue-lit underwater cave with a domed opening you can swim through — the film set for a Bond underwater scene, thick with fish and shimmering shafts of light. A quintessential snorkel stop.
📍 Big Major Cay, Exumas
The famous beach-dwelling pigs draw the crowds, but the surrounding flat crystal shallows and cays offer genuinely superb easy snorkeling in absurdly clear water.
📍 Central Exumas
Small cays ringed by shallow reefs, grass flats and the occasional coral head — classic Bahamian flats snorkeling with stingrays, turtles and reef fish in water you can see to the bottom.
📍 Long Island / the Exumas marine reserve
Bahamian blue holes are dramatic abrupt sinkholes in the flats. The famous super-deep Dean's is a dive edge, but smaller blue holes are snorkeled from the shallows and are eerie, captivating sights.
Stay with guides around blue holes — conditions and outflow currents can be strong.
📍 Off Andros Island
The Bahamas' largest barrier reef line, with extensive shallow and fringing reef — a wilder, less-developed choice for serious reef time away from the tourist cays.
Real boat-day & reef experiences we've linked on verified booking partners — tour pages with indicative “from” prices where one is known. Availability and live pricing are shown on the partner site at booking time.
Affiliate links — we may earn a commission at no extra cost to you. Prices shown are indicative “from” amounts, not live or guaranteed.
Eat like a local — three off-the-radar spots to round out a day in the water. Spots above the tourist strip, found by asking where the boat crews and neighbours actually eat.
A quiet cay, the Exumas
On the quieter Exuma cays, a family-run fish fry fires up a grill of grouper, conch and whole snapper at sunset, served with peas n' rice under the coconut palms. It's the islands' social ritual, done the way locals do it.
Tip: Order the cracked conch and wash it down with a Sky Juice — gin, coconut water and condensed milk.
Nassau back streets
Old family bakeries on Nassau's back streets turn out guava duff — a steamed rolled bread of guava and spices finished with warm rum-butter sauce — a traditional Bahamian dessert you rarely see on tourist menus.
Tip: Go mid-morning, when the duff comes out of the pot and the rum butter is still warm.
A settlement dock, Elizabeth Harbour side, Exumas
At village docks around the Exumas, a lone stand shucks conch to order and dices it fresh — conch salad with lime, tomato, onion and scorching Scotch bonnet — squeezed over ice in the midday sun. The freshest thing you'll eat all trip, made while you watch.
Tip: Say 'medium' on the pepper unless you want to earn the locals' respect immediately.
Planning Bahamas?
Get the whole journey built end-to-end — flights, stays, boat days, gear and day-by-day timing notes — by the Double Fathom Concierge for a one-time $29. Re-plan any time, chat support through the trip, a destination-specific packing list, curated off-menu operators, and a printable offline PDF itinerary.
Secure checkout by Stripe — pay by card, receipt by email. A one-time, per-trip purchase — nothing recurring, and no rush either way.
The free Mission Briefing is one fixed Raja Ampat sample — not a custom build. To have this destination planned properly, the $29 Concierge tier plans around your dates and re-plans as often as you like.