Sandy Island: Best of Anguilla

Sandy Island, Anguilla’s best-known offshore cay, is a strip of white sand and coral rubble a short run off Sandy Ground — reachable only by boat, protected inside a statutory marine park, and home to exactly one restaurant. It’s the postcard version of a Caribbean sandbar: a handful of palms, turquoise shallows, and nothing else. Reaching it on a crewed charter is genuinely rewarding, but it involves real rules. Anguilla is a separate jurisdiction from St. Martin, with its own customs and immigration, and the island’s moorings close at 7 p.m. This guide covers what the cay actually is, how to clear in, and what the marine park requires, so a day there goes the way it should on a crewed Caribbean charter.

What Is Sandy Island, Anguilla?

Sandy Island is a cay “made entirely of sand and coral fragments/rubble,” situated “only a few km north-west from mainland Anguilla,” according to the Government of Anguilla’s Department of Fisheries and Marine Resources. That’s not poetic license — it’s the official habitat description. There’s no rock core and no elevation to speak of. The cay is a pile of reef-derived sediment sitting in shallow water, a few hundred meters of beach with a cluster of palms in the middle.

It sits inside the Sandy Island Marine Park, one of seven marine parks Anguilla has designated by statute, covering roughly five square kilometers. Schedule 1 of the regulations fixes the park’s boundaries by coordinate, running from 18°12′06″N to 18°13′00″N and from 63°06′49″W to 63°08′25″W — a useful detail, given how many other places in the Caribbean are also called Sandy Island.

The surrounding seabed is a mix of sand and rubble, seagrass beds, patch reefs, and deeper reef. That includes a feature called Dowling Shoal, which the department describes as having “variable hard and soft coral communities and a wide variety of reef fish species.” It’s also juvenile habitat for green and hawksbill turtles, with a small amount of nesting on the cay itself.

Sandy Island is a small offshore cay a few kilometers northwest of mainland Anguilla, made entirely of sand and coral rubble. It sits inside the statutory Sandy Island Marine Park, roughly five square kilometers of sand, seagrass, patch reef and deeper reef that serves as juvenile habitat for green and hawksbill turtles. (Anguilla Dept. of Fisheries and Marine Resources)

Two practical details are worth knowing up front. The main island is privately owned, and — in the department’s own words — “one restaurant operates here also.” That single operation is the entire built environment of the island. Everything else is sand.

Why Sandy Island Keeps Getting Rebuilt

Sandy Island rebuilds because the reef around it keeps manufacturing the sand it’s made of. Cays like this form where waves and tidal currents push loose sediment across a reef top to a spot where it piles up above the tide line, and storms are generally erosive on them. Whether one recovers afterward comes down to sediment supply — a dynamic the USGS documents in its work on the role coral reefs play in shoreline stability. Sandy Island is, in a real sense, a landform maintained by its own reef. That’s a large part of why Anguilla regulates the water around it so tightly.

The most recent test was severe. Hurricane Irma’s northern eyewall struck Anguilla on 6 September 2017, leaving roughly 90% of the territory’s roads impassable and causing at least $190 million in losses, according to National Hurricane Center post-storm reporting. Forbes Travel Guide reported that the cay “once had coconut trees, plants and a shaded alfresco dining area,” and that “the storm left it a barren strip of white sand.” The family-run operation rebuilt a kitchen, bathrooms, and shade structures; the restaurant was reported back open in April 2018, roughly seven months after the storm.

There’s a second reason this particular cay is exposed. It sits off Anguilla’s northwest, leeward side, which normally faces away from Caribbean weather. But NOAA’s report on Hurricane Lenny — the November 1999 storm that ran the wrong way across the Caribbean, west to east, the first in the 113-year record to do so — noted that its “approach from the west produced unprecedented wave and storm surge impact on westward-facing coasts and harbors.” The sheltered side isn’t always the sheltered side.

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Clearing Into Anguilla by Yacht

Private yachts must clear customs and immigration at Sandy Ground, in Road Bay — it’s the only port of entry for arriving boats, per the Anguilla Tourist Board. This catches people out. Anguilla is a self-governing British Overseas Territory with its own customs, immigration, and currency, entirely separate from St. Martin or Sint Maarten. Crossing the Anguilla Channel means entering another jurisdiction, passports and all.

The sequence on arrival is straightforward once you know it:

1. Sail directly to Road Bay and anchor — no stopping at the marine parks first.
2. Clear customs and immigration at the Sandy Ground office, with passports for everyone aboard.
3. Pay port dues, charged by gross tonnage, plus a US$3 per-passenger port security fee set out in Anguilla’s Seaports Fees Regulations. Dues are commonly reported at US$19 for vessels under 20 gross tons and US$34 above — confirm the current figure at the counter.
4. Buy a cruising permit for the vessel, priced by tonnage and duration.
5. Only then head out to Sandy Island or the other marine parks.

View data table

Vessel tonnage	One day	One week	One month	Three months
Up to 5 tons	EC$75 (~US$28)	EC$275 (~US$102)	EC$700 (~US$259)	EC$1,400 (~US$519)
5–20 tons	EC$150 (~US$56)	EC$750 (~US$278)	EC$2,250 (~US$833)	EC$6,000 (~US$2,222)
Over 20 tons	EC$375 (~US$139)	EC$1,500 (~US$556)	EC$3,000 (~US$1,111)	EC$8,500 (~US$3,148)

A few clauses in the Cruising Permit Regulations matter in practice. A permit is issued to a specific boat and isn’t transferable. It runs from 9 a.m. on the start date to midnight on the expiry date. And critically, the regulations state that a cruising permit “does not confer any right or entitlement on any person to come ashore or enter Anguilla” — the permit covers the vessel, not the people aboard, so immigration clearance is a separate step.

Anguilla is a self-governing British Overseas Territory with its own customs and immigration. Private yachts must clear in at Sandy Ground in Road Bay, the sole port of entry. Port dues are charged by gross tonnage, plus a cruising permit — EC$150 per day for a 5–20 ton vessel. (Government of Anguilla; Anguilla Tourist Board)

Marine Park Rules at Sandy Island

The single most important rule: no vessel may moor or anchor in an Anguillian marine park between 7 p.m. and 6 a.m., under the Marine Parks Regulations. Sandy Island is a day stop by law. You can’t overnight there, which is why boats visiting the cay base themselves in Road Bay and come out for the day.

Mooring and anchoring both require a marine park permit, and for a visiting boat the application has to be accompanied by a valid cruising permit — the two documents work together. Worth noting on cost: the marine park fee schedule sets charges for things like filming, camping and operating a business, but lists no separate mooring or anchoring fee. In practice the cruising permit is the charge that covers you.

The Department of Fisheries and Marine Resources maintains a mooring field off the western side of the cay, and its published rules are specific. No vessel over 65 feet may use the buoys. Yellow buoys are for boats under 40 feet, white for under 65 feet, and red buoys are reserved for licensed Anguillian dive operators.

Anchoring isn’t banned outright at Sandy Island, but it’s tightly bounded. The department permits anchoring “in two sandy areas in front of the western side of the island,” and only in designated sandy zones — the point being to keep chain off coral and seagrass. It’s a stricter regime than most of the region’s hidden Caribbean anchorages, and it exists precisely because the cay depends on the reef around it.

Also prohibited inside the park:

• Spearfishing, conch fishing, and trap fishing (hook-and-line is permitted)
• Water skiing
• Discharging bilge water or sewage
• Dumping litter
• Lighting fires
• Removing any flora or fauna, which includes coral and shells

Anguilla’s Marine Parks Regulations prohibit mooring or anchoring in a marine park between 7 p.m. and 6 a.m., making Sandy Island a day stop by law. Moorings off the cay’s western side are capped at 65 feet, and anchoring is allowed only in designated sandy areas. (Anguilla Marine Parks Regulations)

What It’s Actually Like Ashore

There’s one restaurant on the cay and nothing else — a fact confirmed in the government’s own marine park management plan. Before Irma, Forbes described a shaded alfresco dining area serving local lobster, shrimp, and rum punch. The rebuilt operation runs from a kitchen with restrooms, shade structures, a solar system, and its own water supply. It operates under a marine park business permit, which is a licensed category under the regulations.

One restaurant operates on Sandy Island and nothing else, per Anguilla’s official marine park management plan. Rebuilt after Hurricane Irma, it runs from a kitchen with restrooms, shade structures, a solar system and its own water supply, under a marine park business permit. The rest of the cay is sand and palms. (Anguilla Dept. of Fisheries and Marine Resources)

The department notes the area “is heavily visited by tourist charters and popular with snorkelers,” and that’s the honest picture: this is a well-known stop, not a secret one. The snorkeling works because of what surrounds the cay rather than the beach itself — patch reefs, seagrass, and the deeper reef at Dowling Shoal, with green and hawksbill turtles using the shallows as juvenile habitat.

For guests not arriving on their own boat, a sea shuttle runs from Sandy Ground and the crossing takes roughly 10 to 15 minutes. Schedules and seasonal operating months change, so confirm directly before building a day around it. Bear in mind too that a sandbar with one kitchen has finite capacity on a busy high-season afternoon.

When to Go and How It Fits a Charter

Caribbean high season runs December through April, and Anguilla’s driest months are February and March, with the rainy season falling in September and October, per the Anguilla Tourist Board. The Atlantic hurricane season officially runs 1 June to 30 November, peaking around 10 September, with most activity between mid-August and mid-October (NOAA). For a low-lying sandbar in a marine park, that seasonal split matters more than it would for a resort.

One weather note specific to this crossing: through the winter months, the trade winds known locally as the Christmas Winds can build a short, steep chop across the Anguilla Channel. It’s a short hop of roughly five miles of open water, but a captain will time it rather than bash across on a fixed schedule.

High season for Anguilla runs December through April, with February and March the driest months and September and October the wettest. Atlantic hurricane season runs 1 June to 30 November, peaking around 10 September. Winter trade winds can build a steep chop across the Anguilla Channel. (Anguilla Tourist Board; NOAA)

In practice, most crewed itineraries treat Sandy Island as a day excursion from a St. Martin base. It pairs naturally with the wider St. Martin and St. Barts cruising ground, where you might spend one evening at the lolos of Grand Case and another working through the best anchorages in St. Barts. The crew handles clearance paperwork, buys the permits, and reads the forecast for the channel crossing — which is most of the friction removed.

If you want the sandbar-in-the-middle-of-nowhere photograph without the paperwork becoming your problem, Sandy Island is exactly the sort of stop a crewed charter handles well. You can start a yacht search at Vital Charters when you’re ready to plan the week around it.