Travel guide by Boating Puerto Rico Team · Published September 2026
Wild horse on the beach in Vieques, Puerto Rico
Island Guide · Vieques, PR

Cayo La Yayi Vieques, Puerto Rico

Antes prohibido, hoy libre. A small cay that spent decades inside a restricted U.S. Navy zone — now a scenic stop on a private charter to Vieques.

1941–2003
Years Under Navy Control
80%
Of Vieques Once Restricted
Boat Only
No Public Ferry to the Cay
Now Open
Part of the Refuge Coastline
A Cay With History

From Restricted Zone to Charter Stop

Antes prohibido, hoy libre: Cayo La Yayi sits along a stretch of Vieques coastline that was, for decades, completely off-limits to the public. Today our captains include it as a scenic stop on select Vieques charters from Fajardo.

Cayo La Yayi is a small cay off the coast of Vieques, Puerto Rico — part of an island whose modern history is inseparable from the U.S. Navy. Starting in 1941, the Navy took control of roughly 80 percent of Vieques for military exercises, including live bombing and training ranges that operated for more than six decades. For generations, large sections of the island's coastline — including cays like La Yayi — were entirely closed to residents and visitors alike.

That changed after years of sustained protest, culminating in the Navy's withdrawal from Vieques in May 2003. Much of the former military land was subsequently designated as the Vieques National Wildlife Refuge, and areas that had been off-limits for a lifetime opened to the public for the first time. Cayo La Yayi is part of that story — a small, scenic piece of coastline that visitors simply could not reach for most of the 20th century, and can now see firsthand.

Getting There

How to Visit Cayo La Yayi

There is no public ferry or scheduled transport to Cayo La Yayi. It is visited by private boat as part of a broader charter to Vieques, which departs from Marina Puerto del Rey in Fajardo. Our captains, who run this route regularly, know the cay and the surrounding coastline well enough to time a stop there around the day's conditions and the rest of the itinerary.

Everything is included on a private charter: licensed captain and mate, fuel, snorkel gear, floating mat, ice, beer, water, sodas, fresh fruit, snacks, and sandwiches or wraps. A stop at La Yayi is typically combined with time at Vieques' beaches, and for overnight charters, an after-dark visit to Mosquito Bay.

Vieques Charter · Marina Puerto del Rey, Fajardo

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Private boat, dedicated captain and crew. Vieques beaches, Cayo La Yayi, and the option to add the bioluminescent bay after dark. Message us on WhatsApp to plan your day.

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What to Expect

What Cayo La Yayi Is Like Today

Because so much of Vieques' coastline was closed to development and public access for decades, the areas that have opened since 2003 — La Yayi included — remain remarkably undisturbed compared to more built-up parts of Puerto Rico. There are no facilities, no crowds, and no infrastructure at the cay itself; it is a stop for the scenery and the water, not a developed attraction.

That undeveloped character is exactly what makes it worth including on a Vieques charter — a genuinely quiet corner of an island that is itself one of the least crowded major destinations reachable from Fajardo.

Planning Tip

Ask your captain about La Yayi when you book. Because conditions and access around Vieques' former restricted areas can vary, our captains decide day-of whether a stop at La Yayi fits well with the rest of your itinerary and the day's sea conditions.

FAQ

Cayo La Yayi — Frequently Asked Questions

Cayo La Yayi is a small cay off the coast of Vieques, Puerto Rico. For decades it sat within the restricted zone controlled by the U.S. Navy, which used most of Vieques as a bombing and training range until withdrawing in 2003. Areas like La Yayi that were once off-limits are now accessible to visitors.
Starting in 1941, the U.S. Navy took control of roughly 80 percent of Vieques for military exercises, including live bombing ranges. After decades of protest, the Navy withdrew in May 2003. Much of the former Navy land was subsequently designated as the Vieques National Wildlife Refuge and opened to the public, though some zones remain closed due to unexploded ordnance.
Cayo La Yayi is reached by private boat as part of a charter to Vieques, which departs from Marina Puerto del Rey in Fajardo. There is no public ferry to the cay itself — a private charter with a captain familiar with the area is the practical way to visit.
Yes. Most guests combine a stop at Cayo La Yayi with other Vieques highlights on a full-day or overnight charter, such as Vieques' beaches and, after dark, the Mosquito Bay bioluminescent bay — the brightest bioluminescent bay in the world.
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Book a Vieques Charter — With a Stop at La Yayi

Private yacht, dedicated captain and mate, all food and drinks included. Vieques beaches, Cayo La Yayi, and the bioluminescent bay after dark on overnight trips.

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