A group of kayakers has raised the alarm after discovering what appeared to be a large and continuous flow of water running down the cliffs and directly into the sea between Cala Molí and Cala Vadella in Sant Josep de sa Talaia, Ibiza.

The kayakers recorded video of the flow during an excursion along the coast on Saturday, September 5, and described what they saw as a substantial waterfall pouring from the cliffside into the Mediterranean.

The most striking detail was that the flow did not appear to be brief.

According to the group, they first noticed the water at approximately 10:00 in the morning. When they returned to the same stretch of coastline around 13:00, the water was still flowing with what they described as the same force.

The kayakers have shared the footage publicly and are calling for authorities and inspection services to investigate the situation as soon as possible.

A large flow of water was spotted from the sea

The incident was observed from the water during a kayaking trip along the coastline of Sant Josep.

The flow was located on the stretch between Cala Molí and Cala Vadella, shortly after passing Cala Molí and turning left along the coast.

From the sea, the kayakers could see a substantial amount of water falling down the cliff face before reaching the Mediterranean.

Noudiari described the flow as resembling a waterfall, while the people who recorded it were particularly concerned by its apparent size and persistence.

The water was still flowing three hours later

One of the strongest details in the account is the length of time for which the flow was observed.

The kayakers said they first encountered it at around 10:00.

They then returned through the same area at approximately 13:00 and found that the water was still flowing with apparently similar strength.

That observation led them to believe that the situation was not simply a brief runoff event or a small amount of water draining from the landscape.

The continuous nature of the flow was the main reason they decided to raise the alarm.

The source of the water has not been confirmed

At this stage, there is no official confirmation identifying the source of the water.

The kayakers suggested that it could potentially be the result of a broken water pipe or a problem with an installation serving houses located higher up on the cliff.

That remains a possibility rather than an established fact.

The group speculated that residents in properties above the cliff may not have realised that a pipe had failed because the water was travelling directly down the rock face and into the sea.

There is currently no evidence in the available report confirming that a domestic water pipe is responsible.

The location is between two popular Ibiza coves

The reported leak is situated along the coastline between Cala Molí and Cala Vadella.

Both coves form part of Sant Josep's western coastline, an area known for rocky cliffs, small beaches and clear Mediterranean waters.

The section where the water was observed is not described as being directly on the main beach at either Cala Molí or Cala Vadella.

Instead, the flow was spotted along the cliffside between the two coves.

That makes the kayakers' perspective particularly important, as the issue was discovered from the sea rather than from a road or residential area above.

Kayakers shared video of the incident

The group recorded video footage showing the water flowing down the cliff.

They subsequently shared the images on social media to draw attention to the situation and encourage an inspection.

The footage is important because it provides a visual record of the unusual flow and its apparent scale.

However, video alone cannot establish the source or quality of the water.

An inspection and, if necessary, water testing would be needed to determine whether the flow is freshwater, wastewater, groundwater, runoff or water from another source.

Ibiza is currently facing water-resource concerns

The report comes at a particularly sensitive time for Ibiza's water resources.

The island's water reserves fell to 37% at the end of August, down from 42% in July and 47% in June.

August was also exceptionally dry and hot across the Balearic Islands.

The timing means that any substantial and unexplained loss of freshwater is likely to attract attention, particularly when water is visibly flowing directly into the sea.

The kayakers specifically cited concerns about Ibiza's water reserves when calling for authorities to investigate the situation.

It is too early to describe the flow as a wastewater spill

Because the water is entering the sea, it may be tempting to describe the incident as a wastewater discharge.

That has not been established.

The available information only confirms that kayakers observed a significant flow of water falling from the cliff into the sea.

There has been no confirmed identification of the water as sewage or treated wastewater.

Similarly, there are no reported laboratory results showing contamination.

The safest description at this stage is therefore a large, unexplained water flow or suspected leak.

Why authorities may need to inspect the area

If the flow is the result of a broken pipe or other infrastructure failure, identifying the source quickly could prevent unnecessary water loss.

If it is wastewater, an investigation would be necessary to establish whether the discharge is authorised and whether it could pose an environmental or public-health concern.

If the water is natural groundwater or another form of runoff, that would provide a very different explanation.

An inspection would therefore be needed before drawing conclusions.

The cliffs make the source difficult to identify

The geography of the area may make it difficult for people on land to identify where the water is coming from.

The kayakers described the flow as emerging from or travelling down the cliff, meaning the actual source could potentially be higher above the visible point where it reaches the rock face.

That is why the group's suggestion of a possible installation or pipe serving properties higher up the cliff remains only a theory.

An investigation from land could potentially determine whether the water is connected to any existing infrastructure.

The incident was discovered during a recreational excursion

The situation was not initially detected through an official inspection.

It was spotted by a group of kayakers who were travelling along the coast.

Their decision to record the flow and report it publicly means the observation has now been brought to wider attention.

This also highlights the role that recreational users of Ibiza's coastline can play in noticing unusual environmental situations that may otherwise remain difficult to see from land.

No injuries or immediate emergency have been reported

There is no indication that anyone was injured as a result of the water flow.

The kayakers were able to pass the area during their excursion and later returned through the same section.

The concern described in the report relates primarily to the possible loss of water and the uncertainty about its source.

There is also no indication that the incident has caused a confirmed closure of Cala Molí, Cala Vadella or another bathing area.

The situation remains unverified by authorities

The available report records the observations of the kayakers but does not state that an official inspection has yet established the cause.

That means several important questions remain unanswered.

How much water is flowing?

Where exactly does it originate?

Is it freshwater?

Is it connected to a broken supply pipe?

Could it be groundwater?

Could it be wastewater?

Has the flow affected water quality in the surrounding sea?

Those questions require an official inspection and potentially sampling.

A potentially significant water loss

If the kayakers' description of a large and continuous flow is accurate and the source is a broken freshwater pipe, the incident could represent a substantial loss of water.

The fact that the flow was still visible approximately three hours after it was first discovered suggests that it was not insignificant.

However, without measurements of the flow rate, it is impossible to calculate how much water may have been lost.

For this reason, estimates of litres or cubic metres per hour should not be made based solely on the video.

The concern comes after a difficult summer for Ibiza's water reserves

Ibiza ended August with water reserves at 37%.

The figure represented a five-point fall during August and a 10-point decline since June.

The island remains in the pre-alert drought category.

At the same time, August was recorded as the hottest August in the Balearic Islands since 1961, according to Aemet.

The combination of high temperatures, low rainfall and high seasonal water demand makes the appearance of an apparently large freshwater flow into the sea particularly striking.

That context explains why the kayakers have asked for the incident to be investigated quickly.

Sant Josep has a long coastline requiring monitoring

Sant Josep de sa Talaia contains some of Ibiza's most prominent western and southern coastal areas.

Its coastline includes major tourist beaches as well as isolated rocky sections that are easier to access by sea than from land.

Regular monitoring is important in such areas because leaks, damaged infrastructure or other environmental incidents may not always be immediately visible from roads or beaches.

The kayakers' discovery demonstrates how unusual flows can be identified by people travelling along the coastline by boat or kayak.

The next step is to identify the source

The priority now is determining where the water is coming from.

A land-based inspection could establish whether the flow is connected to a pipe or building installation above the cliff.

Authorities could also determine whether there is any infrastructure crossing or running near the affected section.

Water-quality analysis would be appropriate if there were concerns that the flow could contain wastewater or other contaminants.

Until such checks take place, the available evidence supports only the conclusion that an unusually large and persistent flow of water has been observed.

What the kayakers are asking for

The group has used its footage to call for immediate intervention by the authorities and inspection services.

Their principal concern is the possible loss of water into the sea at a time when Ibiza's water resources are already under pressure.

They also want the source of the flow identified.

The request is essentially for someone to inspect the area, determine whether infrastructure has failed and stop the flow if it is the result of a leak.

What is confirmed so far?

A group of kayakers observed a large flow of water between Cala Molí and Cala Vadella.

The location is on the coastline of Sant Josep de sa Talaia.

The incident was observed on Saturday, September 5, 2026.

The kayakers first noticed the flow at approximately 10:00.

They returned at approximately 13:00 and reported that the water was still flowing with similar force.

They recorded video footage of the flow.

The water was falling down the cliff directly into the sea.

The source of the water has not been officially established.

The kayakers suggested that a broken pipe or installation associated with properties above the cliff could be responsible, but this is only a hypothesis.

No official evidence has been reported identifying the water as wastewater.

The group has called for authorities and inspection services to investigate.

Why it matters for Ibiza

The report arrives during a period when water management is already a major issue on the island.

Ibiza's reserves ended August at 37%, while the month was exceptionally hot and rainfall was substantially below normal.

Against that background, an apparently large flow of water running directly into the sea naturally raises questions about whether a potentially valuable freshwater resource is being lost.

But identifying the source is essential before deciding exactly what the incident represents.

It could be a broken supply pipe, another infrastructure failure, groundwater or a different source entirely.

Until authorities inspect the site, none of those explanations can be treated as confirmed.

An unusual discovery along Ibiza's western coast

For now, the most reliable account is simple.

Kayakers travelling between Cala Molí and Cala Vadella spotted what appeared to be a substantial and continuous flow of water coming down the cliff.

They saw it at around 10:00 on September 5 and still found it flowing several hours later.

They recorded the event and called for an urgent inspection.

The incident does not yet establish a pollution event or a confirmed infrastructure failure.

What it does establish is that an unusually large flow of water was observed entering the Mediterranean from the Sant Josep coastline, and that its source remains unknown.

With Ibiza already facing pressure on its water resources, identifying the origin of the flow will be important.

Key Facts

Date observed: September 5, 2026

Location: Coast between Cala Molí and Cala Vadella

Municipality: Sant Josep de sa Talaia, Ibiza

First observation: Approximately 10:00

Second observation: Approximately 13:00

Duration observed: At least three hours

Direction of flow: From the cliff directly into the sea

Reported source: Not officially established

Possible cause suggested by kayakers: Broken pipe or installation serving properties higher on the cliff

Official confirmation of wastewater: None reported

Action requested: Immediate inspection by authorities and relevant services