Overnight Anchoring Rules by Region: Mediterranean, Caribbean & Beyond (2025)

The International Baseline: COLREGS

Regardless of where you sail, International Regulations for Preventing Collisions at Sea (COLREGS) apply to all vessels in international waters and form the baseline for most national maritime law.

The key rule for anchored vessels is COLREGS Rule 30, which requires every vessel at anchor to display an all-round white light visible from all directions at night. This applies universally — whether you're in Turkey, the Caribbean, or the South Pacific. Failing to show an anchor light is a violation in virtually every jurisdiction and can be dangerous to other vessels.

Beyond COLREGS, each country — and sometimes each marine protected area — layers its own rules on top. Here's what those look like in the most popular sailing regions.

Turkey

General Rules: One of the Most Relaxed in the Mediterranean

Turkey is widely considered one of the most sailor-friendly countries in the Mediterranean when it comes to anchoring. In the vast majority of Turkish coves and bays, anchoring is free, unrestricted, and requires no permit. You can drop anchor in a beautiful bay and pay nothing — a stark contrast to parts of Croatia or the French Riviera.

A few practical rules apply everywhere:

• Display an all-round white anchor light at night (COLREGS Rule 30)
• Do not anchor in marked prohibited zones (shown on charts)
• Respect maximum stay limits where posted — some popular bays limit stays to 11 days during peak season to prevent long-term occupation
• Do not anchor within swimming zones or near marked beach areas

The Fethiye-Göcek Special Environmental Protection Area

The rules change significantly in the Fethiye-Göcek Special Environmental Protection Area (SEPA) — one of 18 such protected zones in Turkey and one of the most spectacular cruising grounds on the Turkish coast.

To protect the area's Posidonia seagrass meadows, free anchoring has been largely replaced by a managed mooring buoy system in the protected coves of Göcek and the Dalaman bays. Key rules:

• Use state-installed mooring buoys in designated coves — free anchoring in these areas is restricted or prohibited
• Buoys must be reserved in advance via a mobile app, typically 48 hours ahead during peak season
• No anchoring within 100 metres of swimming zones or within 40 metres of the shoreline in protected areas
• Stern-to-shore mooring using the boat's own lines (tied to approved rings, not trees or vegetation) remains common in some coves

Outside the Göcek SEPA, the rest of the Turkish coast remains relatively unrestricted, making Turkey an excellent choice for sailors who want flexibility and value.

Greece

Entry Requirements

EU-flagged vessels no longer need to carry a DEKPA cruising permit since its abolition for EU boats. Non-EU vessels still require a Transit Log, available at the first official port of entry for a modest fee. All vessels should clear into Greece at an official port of entry before proceeding to remote anchorages.

Where You Can Anchor

Greece offers an enormous variety of anchorages across its thousands of islands. Free anchoring in open bays is generally permitted and widely practised. However, rules apply in several categories of restricted areas:

• Organized beaches: Anchoring near beaches with lifeguards and facilities (marked with flags) is restricted — always give these a wide berth
• Marine protected areas: Areas such as the National Marine Park of Alonissos (Northern Sporades) have specific anchoring zones; some areas prohibit anchoring entirely to protect monk seal habitats
• Military zones: Marked on charts — do not enter or anchor in these areas
• Archaeological sites: Some underwater archaeological zones prohibit anchoring to prevent damage to submerged remains

Mooring Fees

Most public harbours and marinas charge a mooring or anchoring fee based on vessel length and tonnage. For reference, expect to pay around €8–15 for an 11-metre yacht in a municipal harbour, payable to the port police. Many smaller anchorages in open bays are free of charge.

Croatia

The SSVO 2025: Significant New Rules

Croatia introduced its most significant update to maritime anchoring regulations in years with the SSVO maritime safety ordinance, which came into force on March 29, 2025. Sailors heading to Croatia in 2025 and beyond need to be familiar with these changes.

Key SSVO 2025 Rules

• 150-metre beach exclusion zone: Anchoring is prohibited within 150 metres of natural beaches. This applies to all beaches, not just organised ones.
• No tying to trees or vegetation: Tying stern lines to trees, bushes, or any coastal vegetation is now explicitly banned. Use designated mooring rings installed on the shore, or anchors only.
• 50-metre coastal mooring limit: The total extent of your mooring setup — from where the anchor chain meets the water to your boat — cannot exceed 50 metres from the coast. This limits how far offshore boats can spread across a cove entrance.
• Swimmer exclusion zones: Boats must maintain at least 150 metres from swimmers at all times.
• Speed limits: A 10-knot speed limit applies within 300 metres of the coast; 3 knots within 50 metres.

National Parks

Croatia's national parks — including Kornati, Mljet, and the Telašćica Nature Park — require entry permits and restrict anchoring to designated zones. Entry fees vary by park and season. In Kornati, for example, anchor only in marked anchorage zones and expect rangers to check permits.

Enforcement is taken seriously: coast guard patrols use AIS tracking, radar, and increasingly, drones to monitor compliance with the new rules. Fines for violations can be substantial.

Spain & the Balearic Islands

Posidonia Seagrass Protection

Spain's most significant anchoring restrictions centre on protecting Posidonia oceanica — the endemic Mediterranean seagrass that underpins the ecosystem health of Spanish coastal waters. Anchoring over Posidonia beds is prohibited throughout Spanish waters, and enforcement has increased significantly in recent years.

The challenge for visiting sailors is identifying where Posidonia is present — it's not always immediately visible from the surface. Download specialist apps or consult pilot books that mark known Posidonia zones before anchoring in any Spanish bay.

Balearic Islands

The Balearics (Mallorca, Menorca, Ibiza, Formentera) are among the most popular and most regulated sailing areas in Spain:

• Many popular bays now have designated mooring buoy fields managed by private concessions or local authorities — anchoring outside these zones in a buoy field is prohibited
• Formentera and parts of Ibiza have particularly strict Posidonia protections with significant exclusion zones
• A general 500-metre exclusion zone from the coastline applies in certain protected areas, except at approved anchorages and port approaches
• Mooring buoy fees in popular Balearic bays typically range from €15 to €40 per night in season

France

Posidonia and Marine Reserve Rules

France takes Posidonia protection extremely seriously, particularly along the Côte d'Azur and around its national marine reserves. Anchoring over Posidonia beds is prohibited, and the areas affected are extensively charted and marked with buoys in many locations.

Around the Port-Cros National Park and nearby Porquerolles, specific anchoring zones are designated, and moorings are provided in many areas to prevent anchor damage to the seabed. Rangers actively patrol these waters.

Large Yacht Regulations

For vessels over 45 metres, France introduced additional requirements in 2024: yachts of this size must contact the nearest semaphore station at least one hour before anchoring and declare their anchoring plan — which can be refused on environmental or safety grounds. Violations can result in fines of up to €150,000 and a potential ban from French waters.

For recreational-sized yachts, the key rule is simple: avoid Posidonia zones, stay out of marked prohibited areas, and use mooring buoys where provided. Free anchoring in open, sandy- bottomed bays remains common and unrestricted.

Italy & Sardinia

Marine Protected Areas

Italy has an extensive network of marine protected areas (AMPs — Aree Marine Protette), each with its own specific anchoring rules. Some, like the waters around the La Maddalena Archipelago in northern Sardinia, divide the sea into zones with different restrictions — from complete prohibition on entry to zones where anchoring at designated spots is permitted.

Before anchoring in any Italian AMP, check the specific zone rules for that area. Entry permits are often required and can sometimes be purchased online.

The Sardinia Overnight Anchoring Controversy

Sardinia sparked significant debate in the sailing community when the regional government introduced restrictions on overnight anchoring for non-resident vessels in certain protected coastal areas. The rules — aimed at reducing environmental pressure from charter and cruising yachts — were challenged in court.

As of mid-2025, the Sardinian TAR (regional administrative court) temporarily lifted the overnight anchoring ban, restoring access to designated buoys provided by the national park. This remains a fluid situation — check current status before sailing to Sardinia, as regulations may change again.

Beach Distance Rules

In parts of southern Italy, fines of around €300 or more apply for anchoring too close to beaches. The exact exclusion distance varies by municipality and protected area, but as a general rule, maintain at least 200 metres from organised beaches and follow any local signage.

The Caribbean: BVI and USVI

British Virgin Islands (BVI)

The BVI offers some of the Caribbean's most spectacular sailing, with hundreds of anchorages across more than 60 islands. The rules are relatively straightforward:

• Clear customs first. All vessels entering BVI waters must proceed directly to an official port of entry (Road Town, Tortola or Virgin Gorda Yacht Harbour) with the yellow Q flag flying before anchoring anywhere. Only after clearance can you proceed to other anchorages.
• National Park mooring fees: Moorings in BVI National Park waters cost USD $30–$65 per night depending on location. The Bight at Norman Island and The Caves at Peter Island are among the pricier spots. Fees are collected by roving warden dinghies in the evenings.
• Use moorings where provided: In National Park areas, use designated mooring buoys rather than anchoring to protect coral reefs.
• Free anchoring is permitted in many open bays and harbours outside National Park areas, such as Trellis Bay.

Note: The BVI introduced significant new charter licensing rules in June 2025, limiting how often USVI-based charter vessels can operate in BVI waters. If you're chartering rather than sailing your own boat, check the current charter regulations with your operator.

U.S. Virgin Islands (USVI)

The USVI operates under US federal maritime law, which is broadly similar to other US waters. Key points:

• Charter vessels not registered in the USVI must obtain a cruising permit to anchor overnight in USVI territorial waters
• Within the Virgin Islands National Park (St. John), mooring buoys are required — anchoring is prohibited to protect the coral reef ecosystems
• Mooring fees in the Virgin Islands National Park are set by the US National Park Service

Rules That Apply Everywhere

Regardless of which country you're sailing in, several rules apply universally:

• Anchor light at night — COLREGS Rule 30 is global law. An all-round white light must be visible from all directions while you're at anchor after sunset.
• Never anchor on coral — beyond being illegal in most jurisdictions, it causes irreparable damage to reef ecosystems. Use a mooring buoy or find a sandy patch.
• Respect swimming zones — exclusion zones around swimmers are near-universal. Stay well clear.
• Check your charts for prohibited areas — military zones, nature reserves, and underwater infrastructure (cables, pipelines) are marked. Don't anchor over them.
• Use an anchor alarm — wherever you're anchored, conditions can change overnight. A GPS anchor alarm is your safety net regardless of local regulations.

How to Stay Compliant: Practical Tips

1. Download the relevant pilot book or app for your sailing area before departure. Imray, Navily, and Navionics all provide anchorage-specific information including local regulations.
2. Check with the port police or harbour master on arrival in each new country. They can tell you about any local restrictions that aren't in the guidebooks.
3. Respect protected area signage. Buoys, boards, and marked zones are there for a reason. Even if enforcement seems lax, fines can be significant.
4. Use mooring buoys where provided — not just because it's often required, but because it genuinely protects the marine environment that makes these destinations worth sailing to.
5. Run a GPS anchor alarm overnight. Good seamanship doesn't stop at the regulations — a reliable anchor alarm app monitors your position through the night so you can sleep peacefully, wherever you're anchored.

The Bottom Line

The freedom to anchor overnight in a remote bay is one of sailing's greatest privileges. But it's a privilege that's increasingly being regulated as popular sailing destinations work to protect their marine environments from the impact of growing numbers of visiting yachts.

Turkey remains the most relaxed destination for free anchoring. Croatia has introduced the most significant new rules in 2025. Greece and Spain sit somewhere in the middle, with strong protections in specific areas. And in the Caribbean, the national park mooring system has largely replaced free anchoring in the most popular spots.

The best approach is simple: research before you arrive, ask the port authority when you check in, and always run an anchor alarm through the night. Wherever you anchor, conditions can change — and a dragging anchor doesn't care what country you're in.