Puerto Rico, Culebra and Vieques

Two small islands, one large one, and the case for going

Puerto Rico itself, a US territory, anchors the group: San Juan on the north coast is the main commercial port and cruise hub, Fajardo on the north-east coast is the principal marina cluster and the jumping-off point for the outer islands, and Ponce on the south coast is the main base for the other side of the island. Culebra, about twenty-one nautical miles east of the mainland and twelve nautical miles west of St Thomas in the US Virgin Islands, centres on Ensenada Honda, described in cruising literature as one of the safest natural harbours in the Caribbean - a nearly landlocked bay with a narrow, buoyed entrance, soft-mud holding and all-round shelter, protected as part of the Culebra National Wildlife Refuge, which covers roughly a quarter of the municipality and dates back to 1909. Vieques, the larger of the two at about twenty miles long, sits a further nine nautical miles south of Culebra; its main anchorage and town is Esperanza, on the south coast, and much of the island is likewise protected as a national wildlife refuge on former US Navy land.

Combined, the Spanish Virgin Islands cover only about 165 square kilometres and hold a population around eleven thousand - genuinely small and quiet compared with the BVI a short sail to the east, which is precisely the pitch made by charter operators and cruising guides who describe the group as a less crowded alternative with darker night skies and more solitude at anchor for broadly the same scenery and trade winds.

The marinas, and the one still being built

Puerto del Rey, in Fajardo, is consistently described as the largest, or one of the largest, marinas in the Caribbean; sources disagree on the exact slip count, with figures ranging from around a thousand to twelve hundred wet slips plus six hundred and fifty to over seven hundred and fifty dry-stack spaces stacked three high, so treat any single total as approximate. The marina's own published figures for capability are more solid: wet and transient slips take vessels from 32 to 200 feet with up to 15 feet of draft and no restriction on air draft or beam. It was acquired by Safe Harbor Marinas in 2021, since when it has continued to add capacity, including new boat forklifts. Elsewhere in Fajardo, Sunbay Marina runs 282 slips and Isleta Marina, a small islet reached by a short ferry running every fifteen minutes, adds another 240 wet slips with its own boatyard. In San Juan itself, San Juan Bay Marina holds around 117 to 137 slips for boats to 250 feet with a haul facility to 65 feet, and on the south coast, Ponce Yacht and Fishing Club runs 174 docks, including front T-docks that take vessels to 200 feet.

The more significant development is still under way: a new superyacht marina and full refit yard at Pier 15 in San Juan, a joint project between Safe Harbor Marinas and the Puerto Rico Ports Authority, planned around a 196 metre dry dock and a 289 metre outfitting pier designed for vessels up to 190 metres. Safe Harbor's own chief executive, Baxter Underwood, has framed the project around a real gap in the market: the world's largest vessels have historically been forced to cross the Atlantic for certain services. The original target for the first phase was the end of 2024 or into 2025; its current completion status should be confirmed directly before a visit is built around it, since large marine infrastructure projects routinely run past their first announced date.

A US-flagged yacht can move from the mainland through Puerto Rico to the US Virgin Islands without clearing a single foreign border - just an arrival report on a phone, which is more than most of the Caribbean can say.

No customs clearance, but not no paperwork either

This is the single most useful practical fact on this page. Because Puerto Rico and the US Virgin Islands are both US territory, a vessel moving between them, or arriving from the US mainland, is not clearing into a foreign country the way it would entering the British Virgin Islands or the Dominican Republic - there is no visa process, no cruising permit fee, no formal customs declaration of the kind a foreign port requires. What is still required is a report of arrival, filed through the CBP ROAM app - Reporting Offsite Arrival, Mobile - which replaced the old Small Vessel Reporting System in September 2018 and can be completed by any nationality on any flagged vessel, not only US citizens on US boats, from a smartphone or a local business with WiFi. Some situations still need an in-person visit to a physical CBP office rather than the app alone - anyone needing an I-94 arrival record, a cruising licence, or who owes duty on goods aboard - but for the ordinary case of a US-flagged yacht moving within US waters, the app is the whole process. Foreign-flagged vessels can obtain a cruising licence through ROAM as well, after which they can move between US ports, Puerto Rico and the USVI included, without repeating the paperwork at every stop.

The one specific environmental rule worth knowing before a Vieques visit concerns Mosquito Bay, the bioluminescent bay reached from Esperanza and widely reported, via tourism sources rather than an independently confirmed scientific body, to be among the brightest of its kind anywhere. Motorised boats are banned inside the bay outright; access is by kayak or electric craft only, generally through permitted tour operators rather than by private boat, and swimming in the bay is separately restricted. The measure protects the dinoflagellate population responsible for the bioluminescence, and it is enforced, not a suggestion.

Hurricanes, twice, and what that did to the shore

Hurricane season runs the standard 1 June to 30 November, with the dry, high cruising season December to April; trade winds blow a fairly predictable 12 to 18 knots from the east most of the year, with a well-documented strengthening in late December and early January, sometimes called the Christmas winds, that can build to 20 or 30 knots. Hurricane Maria made landfall as a category 4 storm in September 2017 and caused severe damage on the east and south-east coast specifically: boats broke loose, sank or were driven onto pilings at marinas including Sea Lovers' Marina in Fajardo, and Puerto Rico's natural resources agency subsequently removed sunken and derelict vessels and large debris fields from thirty-nine locations across the island and its offshore waters, Culebra and Vieques included. Nearly three thousand deaths were later attributed to the storm and its aftermath, and the island's power grid was effectively destroyed.

Hurricane Fiona struck again in September 2022, while parts of the island's infrastructure were still recovering from Maria five years on, causing island-wide flooding, at least twenty-nine deaths and an estimated three billion dollars in damage, with over ninety per cent of Puerto Rico's commercial crops destroyed. No marina-specific damage report for Fajardo or Puerto del Rey from Fiona could be confirmed during research, so the honest position is to note the storm's severity island-wide rather than claim a specific marina outcome either way. What can fairly be said is that Puerto del Rey has continued to attract institutional investment since Maria - the 2021 acquisition by Safe Harbor Marinas, new equipment, and now the planned San Juan superyacht yard - which is a reasonable, if indirect, sign of continued recovery and confidence rather than a stated repair timeline.

What it actually costs, and the security picture

None of the major marinas - Puerto del Rey, San Juan Bay Marina, or Ponce Yacht and Fishing Club - currently publishes a clear day, week or month rate online; all direct a prospective visitor to book through a platform such as Dockwa or to contact the marina for a current quote. The one specific figure found, a dollar a foot per night at Sunbay Marina including water, cable and electric, dates to 2010 and should not be treated as current pricing. The Caribbean Safety and Security Net's own 2025 annual report recorded 124 incidents across the whole Caribbean, down from a record 145 in 2024, with theft accounting for nearly three-quarters of the total and violent incidents falling to seven; Panama, not Puerto Rico, was the most active country for reported incidents in 2025. A specific Puerto Rico incident logged in the same database was the theft of an outboard motor, cable and oars from a boat at a channel near San Antonio in April 2024 - consistent with the wider pattern of opportunistic theft rather than a targeted risk to cruisers.

The US State Department rates Puerto Rico Level 2, exercise increased caution, with one specific neighbourhood in Old San Juan, La Perla, separately flagged at Level 4, do not travel; the ordinary tourist areas, Old San Juan by day, Condado and Isla Verde, are broadly described as safe, with opportunistic theft, including of dinghies and outboards left unattended, the main practical risk to a visiting yacht rather than anything more serious.

A chi si rivolge: An owner who wants US legal and banking protections, a genuinely quieter alternative to the BVI a short sail away, and is comfortable planning around real, recent hurricane risk rather than assuming the infrastructure is fully weather-proofed.