A megayacht measuring more than 100 metres in length has been reported anchored directly over a Posidonia oceanica meadow in the waters off Cala Salada, Sant Antoni de Portmany, prompting renewed concern over the protection of Ibiza's seagrass meadows.

The incident was reported on the morning of Saturday, September 5, by a group of local boaters who contacted Noudiari after seeing the large vessel apparently anchored in an area where anchoring over Posidonia is prohibited.

The boaters said the location is specifically protected because Posidonia grows on the seabed below the yacht.

The report has once again highlighted the difficulty of controlling anchoring by very large vessels in Ibiza's busiest coastal areas during the summer season.

A very large yacht spotted off Cala Salada

The vessel was described by the witnesses as being more than 100 metres long.

An earlier version of Noudiari's headline described the yacht as approximately 60 metres long, but the article itself and the current version of the publication's page identify it as being more than 100 metres. For accuracy, the larger figure is used here because it is the current wording in the source article.

The yacht was reportedly anchored directly above Posidonia oceanica in the waters opposite Cala Salada.

The sighting took place during the morning of September 5.

The local boaters who reported the incident said they were particularly concerned because the seabed in that location is covered by Posidonia and anchoring there is prohibited.

Anchoring directly on Posidonia is generally prohibited

The concern is not simply about where the yacht happened to drop its anchor.

Under Balearic environmental regulations, anchoring directly on Posidonia oceanica is generally prohibited.

The regional rules state that anchoring on Posidonia is not permitted except in specifically authorised low-impact mooring systems.

Where Posidonia meadows are located close to an anchorage, anchoring equipment, including chains, must also not damage the seagrass.

This means that a large yacht does not need to physically sit on top of the plants for damage to occur. Its anchor and chain can also come into contact with the seabed and affect nearby vegetation.

Cala Salada is an environmentally sensitive area

Cala Salada is one of the best-known coves on the western coast of Ibiza.

The area is recognised for its clear water, rocky coastline and surrounding pine forests, while the seabed contains sandy areas, rocks and Posidonia meadows.

The cove forms part of the broader protected landscape around the northwestern coast of Ibiza.

Its popularity with recreational boaters makes management of anchoring particularly important during the summer, when numerous vessels may gather in the area.

The local tourism authorities also promote the coastline as a destination for water-based activities including kayaking and boat excursions.

Why Posidonia matters to Ibiza

Posidonia oceanica is a seagrass species native to the Mediterranean and one of the most important marine habitats around the Balearic Islands.

It provides habitat for marine species, contributes to water clarity and helps stabilise seabed sediments.

The Balearic Government's conservation framework recognises Posidonia as a habitat of high ecological importance and specifically regulates anchoring because of the potential damage caused by anchors and mooring equipment.

The protection of the meadows is therefore not a minor local issue. It forms part of the region's broader marine conservation policy.

Large anchors can cause significant physical damage

The concern becomes particularly serious when the vessel involved is extremely large.

A megayacht of more than 100 metres may require substantial anchoring equipment to remain in position.

When an anchor drags across the seabed, it can physically disturb vegetation and the substrate in which Posidonia grows.

The accompanying chain can also sweep across the seabed as the vessel moves with wind, waves or currents.

Noudiari's report specifically warned of the potential for the anchoring equipment of large vessels to act like a plough across the seabed when dragged.

However, the report does not establish that the particular yacht observed on September 5 actually dragged its anchor or caused measurable damage.

That distinction is important.

No confirmed damage to the Posidonia meadow has been reported

The local boaters reported that the yacht appeared to be anchored over Posidonia.

The available information does not include an official inspection of the seabed beneath the vessel or a scientific assessment of any damage caused during the incident.

It would therefore be premature to state that the yacht definitely destroyed a specific area of Posidonia.

What can be reported is that the vessel was observed in an area identified as containing Posidonia meadow and that the witnesses considered the anchoring to be prohibited.

Any assessment of physical damage would require inspection or other evidence.

Sant Antoni has dealt with anchoring problems in Cala Salada before

The issue is not new for Sant Antoni.

The municipality has previously reported numerous cases of irregular anchoring in Cala Salada.

In an earlier campaign, Sant Antoni informed the authorities about more than 100 suspected irregular anchoring incidents and specifically noted that the Posidonia meadow in Cala Salada was protected and that anchoring in the area was prohibited.

The municipality's beach-rescue service has also historically carried out information and monitoring work aimed at preventing uncontrolled anchoring.

This means the September 5 sighting comes against a background of already documented pressure on the area.

The authorities have previously proposed low-impact moorings

Sant Antoni has previously worked on a system of low-impact moorings intended to provide alternatives to uncontrolled anchoring.

Such systems are designed to allow vessels to stop without dropping conventional anchors directly onto sensitive seabed habitats.

Under Balearic regulations, authorised low-impact mooring systems can be used in designated areas subject to the relevant environmental and coastal permissions.

The goal is to balance access to popular coves with the need to protect Posidonia.

Cala Salada's popularity makes anchoring control difficult

Cala Salada attracts a large number of visitors during the summer.

Boats regularly arrive from Sant Antoni and other parts of Ibiza, while private vessels also use the surrounding waters.

The combination of clear water, sheltered conditions and the cove's reputation makes it an attractive stopping point.

That popularity, however, creates pressure on the seabed.

When many vessels seek to anchor in the same area, the cumulative effects can become significant, particularly if boats drop anchors in places where Posidonia is present.

The summer season brings particular pressure

The sighting took place at the end of the main August peak but while Ibiza was still experiencing heavy summer activity.

September remains a busy month for boating around Ibiza, with warm weather and large numbers of visitors continuing to use the island's beaches and coves.

That means protecting sensitive seabed habitats remains important even after the busiest weeks of August have passed.

For areas such as Cala Salada, the challenge is particularly pronounced because recreational boating and tourism remain concentrated around a relatively small stretch of coastline.

The current report comes from local boaters

The report was not initially triggered by an official inspection.

It came from a group of Ibiza boaters who observed the yacht and alerted Noudiari.

They described the vessel's location and expressed their concern about its presence above Posidonia.

Their testimony provides the basis for the report, but it does not replace an official inspection.

That is why the article should distinguish between the reported observation and any future determination by the relevant maritime or environmental authorities.

Why the size of the yacht matters

A yacht measuring more than 100 metres is significantly different from a small recreational boat in terms of anchoring requirements.

Larger vessels generally use heavier anchors and longer lengths of chain.

This can increase the area of seabed potentially affected if the anchoring system moves across the bottom.

The exact weight of the anchor and chain used by the yacht in Cala Salada has not been established in the available reporting.

It would therefore be speculative to assign a particular weight or calculate a specific area of Posidonia potentially affected.

Ibiza's Posidonia protection rules

The Balearic Islands introduced specific regulations to protect Posidonia oceanica.

The general rule is that boats cannot anchor directly over Posidonia meadows.

Authorised low-impact mooring systems can be permitted in designated areas, but conventional direct anchoring over the protected seagrass is generally prohibited.

The regulations also take account of nearby Posidonia. Anchoring equipment must not be allowed to affect adjacent meadows.

The objective is to prevent both direct damage from anchors and secondary damage from chains moving across the seabed.

Cala Salada is not an ordinary anchorage

Cala Salada's environmental sensitivity is part of what makes this particular report significant.

The area is surrounded by protected natural landscapes, and the seabed contains Posidonia.

The cove is also heavily visited, meaning there is a constant interaction between recreational boating and a sensitive marine environment.

The challenge for local authorities is therefore not simply enforcing a rule against one vessel. It is managing a large number of boats across an ecologically valuable coastal area.

Posidonia can recover slowly

Posidonia oceanica grows slowly compared with many terrestrial plants.

Its underground rhizome network develops over long periods, and serious physical disturbance can leave scars on the seabed that may take many years or decades to recover.

That is one reason the Balearic Islands have adopted specific rules against uncontrolled anchoring.

The environmental importance of prevention is particularly high because avoiding physical damage is considerably easier than restoring an established meadow after it has been destroyed.

Ibiza has increased monitoring of Posidonia

Authorities in the Balearic Islands have invested in systems designed to monitor protected meadows and discourage illegal anchoring.

These include ecological mooring fields, environmental monitoring and information campaigns.

The regional conservation strategy also provides for increased use of low-impact mooring infrastructure in areas with heavy boating pressure.

The objective is to make it easier for vessels to anchor legally without coming into contact with Posidonia.

The incident raises the question of enforcement

The sighting of a very large yacht allegedly positioned over Posidonia raises a practical question about enforcement.

Rules can prohibit anchoring in sensitive areas, but monitoring thousands of vessels around the Balearic coastline during the summer is a substantial task.

Local boaters have repeatedly called for stronger surveillance of large vessels because of the potential consequences of anchoring incidents.

The September 5 report adds another example to that ongoing discussion.

The current information does not identify the yacht

The available report does not name the vessel.

It also does not establish who owns it, where it came from, where it was travelling or how long it remained anchored in the area.

No information has been published confirming that the yacht was inspected or sanctioned in connection with the incident.

Those details have therefore not been added to this report.

No fine or enforcement action has been confirmed

At the time of the available reporting, there was no confirmed announcement of a fine, seizure or other enforcement action involving the yacht.

The story concerns a reported observation by local boaters and the resulting public concern.

It should therefore not be described as a confirmed illegal-anchoring case resulting in a penalty unless authorities later announce such action.

That distinction is particularly important because the current evidence establishes where the boaters say the yacht was located, but not the outcome of any official investigation.

The wider environmental issue

The incident also fits into a broader discussion about Ibiza's relationship with large yachts.

The island has seen growing attention around the environmental impact of large recreational vessels, including anchoring, waste, water consumption and pressure on coastal areas.

Large yachts are an important part of Ibiza's tourism economy, but their size means that their environmental footprint can be greater when operating in sensitive areas.

The challenge is to ensure that access to Ibiza's coastline remains compatible with the protection of marine habitats.

Why Cala Salada is especially vulnerable

Cala Salada and neighbouring Cala Saladeta are relatively enclosed coastal areas with limited space for vessels to stop.

Their popularity means boats can congregate during periods of good weather.

When the number of vessels increases, the chances of anchoring outside authorised areas also rise.

For Posidonia meadows, repeated anchoring can create cumulative pressure even when individual incidents appear small.

This is one reason why designated mooring systems and clear environmental restrictions are important.

The report renews calls for stronger surveillance

The local boaters who raised the alarm said the incident demonstrates the need for stronger monitoring of large vessels around the Pityusic Islands.

Their concern is particularly focused on very large yachts whose anchoring equipment can potentially affect a wider area of seabed.

The call for greater surveillance is not based solely on this one incident. Sant Antoni has previously dealt with irregular anchoring reports in Cala Salada and has sought additional mechanisms to manage the area's boating pressure.

What is confirmed about the September 5 sighting?

A large yacht was observed off Cala Salada on Saturday, September 5, 2026.

Noudiari's current article describes the vessel as measuring more than 100 metres in length.

A group of local boaters reported that it was anchored directly over Posidonia oceanica.

The witnesses said the area is protected and that direct anchoring over the meadow is prohibited.

The report does not identify the yacht.

There is no confirmed report of a fine or other enforcement action against the vessel.

There is no official assessment in the available reporting confirming the extent of any damage to Posidonia.

Balearic regulations generally prohibit direct anchoring over Posidonia, except for authorised low-impact mooring arrangements.

What happens next?

The key question is whether the reported sighting leads to an official inspection.

If authorities confirm that the yacht was anchored over Posidonia in an area where such anchoring is prohibited, the incident could potentially lead to enforcement action under the applicable environmental regulations.

An inspection could also determine whether the seabed was physically damaged.

Until that happens, the most accurate description is that a large yacht was reported by local boaters to be anchored over a protected Posidonia meadow.

A recurring challenge for Ibiza

The incident at Cala Salada highlights one of the most persistent environmental challenges facing Ibiza's coastline.

The island wants to welcome visitors arriving by sea and benefit economically from its strong nautical tourism sector.

At the same time, it must protect Posidonia meadows that are essential to the health and stability of the Mediterranean coastal ecosystem.

Cala Salada brings both sides of that equation together.

It is a hugely popular destination for boaters, but its surrounding waters also contain protected marine habitat.

The sighting of a megayacht over Posidonia therefore serves as another reminder that managing Ibiza's coastline requires continuous monitoring and effective enforcement.

For now, the reported incident remains a matter of concern raised by local boaters rather than a confirmed case resulting in an announced penalty.

But the rules themselves are clear: direct anchoring on Posidonia is generally prohibited, and the protection of these underwater meadows remains a legal and environmental priority in the Balearic Islands.

Key Facts

Date of sighting: September 5, 2026

Location: Cala Salada, Sant Antoni de Portmany, Ibiza

Vessel: Megayacht

Length reported by current Noudiari article: More than 100 metres

Reported position: Anchored over Posidonia oceanica

Source of complaint: Local Ibiza boaters

Environmental habitat: Posidonia oceanica meadow

General Balearic rule: Direct anchoring over Posidonia is prohibited except under authorised low-impact arrangements

Confirmed fine: None reported

Confirmed environmental damage: Not established

Yacht identity: Not publicly identified in the available report