Eco-Mooring Buoys in Mallorca: What They Are, How They Work and When to Use Them

What they are and why they exist

An ecological buoy is a mooring point secured to the seabed with a system that avoids harming marine life: instead of a chain sweeping the bottom, the boat's line is attached to a fixed element, and the anchor stays on board. They are installed where anchoring pressure was high and posidonia was suffering.

The Balearic Government promotes them as part of its posidonia conservation policy. In regulated buoy fields the rule is clear: you must moor to the designated buoys and dropping the anchor is not allowed.

Where they are

Regulated buoy fields in Mallorca include Sant Elm–Dragonera and Cap Enderrocat–Cala Blava, run by the regional administration, and the Govern has been announcing new fields at other points along the coast. As the list changes, the most reliable approach is to check the current official information before planning a trip.

If you depart from Palma, Cala Blava is within the usual range of a day trip; and from Port Andratx, the Sant Elm area and sa Dragonera island are very close.

Buoys in Cabrera National Park

At Cabrera harbour the system is different and stricter: buoys are booked online, have a daily quota and are colour-coded by boat length (up to 12 m, 12 to 15 m, 15 to 20 m and 20 to 35 m), with rates that vary by season. Occupancy runs from 18:00 on the first day to 17:00 on the last. We cover it in the guide to protected areas in Mallorca.

How to moor properly to a buoy

The manoeuvre needs coordination between the helm and the bow. The boat approaches head to wind at low speed, with a deckhand at the bow who hooks the line using a boathook. Once the buoy's ring is caught, the line is passed through the fairlead and secured at two firm points so the boat is stable and doesn't chafe.

Buoys are sized for specific boat lengths, so not every buoy suits every boat, and on a large yacht it is worth checking in advance which buoys accept its length. Once moored, the engine is switched off and watch is kept, because a buoy is not a guarantee of shelter: if the wind shifts, the boat may become exposed.

When to use a buoy and when an anchor

Where regulated buoys exist, the choice is made: you use the buoy. Outside those fields, and provided there are no posidonia meadows or restrictions, anchoring on clean sand remains a valid option, using the technique described in our guide to how to anchor safely.

In short: the buoy protects the seabed and simplifies the manoeuvre; the anchor demands more judgement and should only be used where it is legal and safe.

Advantages over the anchor

For the seabed the advantage is obvious: no chain sweeps the meadow and no anchor tears out rhizomes. For the boat, a buoy offers a fixed, tested mooring with a known position, which avoids dragging and simplifies watchkeeping. For the guest, it means a quicker, quieter stop without the anchoring manoeuvre.

The drawback is availability: buoys are limited and in high season the most popular ones fill up early. That is why it pays to have an alternative ready.

The manoeuvre on a large yacht, in more detail

On a mid-size or large boat, the manoeuvre is coordinated between helm and bow, usually by radio or headset. The boat approaches with the wind (or current) ahead, at the minimum speed that keeps control, and stops a short distance from the buoy. The bow deckhand hooks the ring with the boathook, passes a line through the fairlead and doubles it back to the boat, so the length can be adjusted without sudden loads.

With the buoy secured, you check that the line doesn't chafe against the hull or fittings, protect it with chafe gear if needed and leave enough length to absorb the boat's movement. It's a simple manoeuvre in calm conditions, but it demands attention in wind or current.

Common mistakes when mooring to a buoy

The most frequent faults are using a line that is too short, which yanks the ring with every wave; letting the line rub the hull; not watching wind shifts and ending up exposed; passing too close to neighbouring buoys; or leaving waste on board unmanaged. Most are avoided with a little planning and a crew who know the boat.

A practical tip: even if the buoy is secure, always check the forecast. Mooring to a buoy doesn't replace reading the forecast; it only replaces the anchor.

What to do if there's no free buoy

If every buoy is taken, the right thing is not to force the situation: you don't drop the anchor in a regulated field, and you look for an alternative. That could mean waiting a moment, choosing a nearby cove with a sandy bottom or reordering the day. In regulated fields, plan B is part of the plan.

Official sources

Rules for regulated buoy fields (Govern de les Illes Balears) · Navigation and anchoring authorisation in Cabrera · Posidonia viewer (IDEIB). Checked in September 2026.

Frequently asked questions