Ibiza and Formentera are not only enjoyed from the surface.
Beneath the blue, crystal-clear waters that define the Pitiusas lies another landscape, quieter and slower, where marine life finds shelter among rocks, sandy seabeds and extensive meadows of Posidonia oceanica.
You do not need to be an experienced diver to discover it. A pair of snorkelling goggles, a little calm and a few minutes in the water are enough to start observing fish, small marine creatures and underwater landscapes that often go unnoticed from the deck of a boat.
Because the Mediterranean surrounding Ibiza and Formentera has much more to offer than what we can see from the surface.
A Sea Full of Life
The seabed around Ibiza and Formentera is constantly changing.
There are areas of pale sand, rocky seabeds, small underwater caves and extensive Posidonia meadows. Each of these environments provides shelter and food for numerous marine species.
During a snorkelling trip, you may encounter schools of fish moving through the vegetation, sea bream close to the rocks or salema porgies swimming across the Posidonia meadows.
And sometimes, the most memorable encounters are the unexpected ones.
An octopus hiding among the rocks. A cuttlefish perfectly camouflaged against the seabed. A starfish resting on the sand.
It is not always about finding large animals.
Often, the beauty lies precisely in discovering the smallest details.
What Fish Can You See in Ibiza?
The waters around Ibiza are home to a great variety of Mediterranean species.
While snorkelling, it is possible to see salema porgies, sea bream, saddled bream, wrasses and scorpionfish, especially around rocky areas and seabeds where marine vegetation is present.
Salema porgies usually move in groups and are easy to recognise by their characteristic golden stripes. Sea bream are frequently found around rocks, while saddled bream can often be spotted in more open water.
Wrasses add colour and movement to the rocky areas.
But perhaps the animals that attract the most attention are those that know how to hide.
Octopuses and cuttlefish are true masters of camouflage. Finding one in the wild is a special experience, precisely because they are often much closer to us than we realise.
The marine life of Ibiza does not always appear in spectacular ways.
You simply have to look carefully.
Posidonia in Ibiza and Formentera: A Forest Under the Sea
If there is one protagonist of the seabed around the Pitiusas, it is Posidonia oceanica.
Although it is often mistaken for seaweed, Posidonia is actually a marine plant endemic to the Mediterranean. It has roots, leaves, flowers and fruit, and forms extensive meadows beneath the water. TTurismo de Formentera+1
Its ecological importance is extraordinary.
The Posidonia meadows between Ibiza and Formentera were declared a UNESCO World Heritage Site in 1999 as part of the Ibiza, Biodiversity and Culture designation. These meadows provide shelter and food for numerous organisms and create important habitats for fish and other marine life. TTurismo de Formentera+1
In a way, it is a genuine underwater forest.
And although from the surface it may appear simply as a green area on the seabed, underwater it is a thriving ecosystem full of life.
Why Is Posidonia So Important?
The role of Posidonia goes far beyond providing shelter for marine animals.
As a marine plant, it carries out photosynthesis and contributes to oxygen production. Its roots and rhizomes help stabilise the seabed, while its meadows also play an important role in protecting the coastline from erosion and storms. TTurismo de Formentera
They are also closely connected to one of the most recognisable characteristics of the Pitiusas: their crystal-clear waters.
Posidonia helps retain sediments and contributes to the balance of the marine ecosystem. This is one of the reasons why the waters surrounding Formentera are renowned for their exceptional transparency. TTurismo de Formentera
So when we can see the seabed several metres below the surface from a boat, we are looking at much more than a beautiful landscape.
We are looking at a living ecosystem.
Why Are the Waters Around Ibiza and Formentera So Crystal Clear?
It is probably one of the first things that surprises visitors to the islands.
Deep blue becomes turquoise over shallow seabeds and, in certain areas, the transparency of the water allows the sand and Posidonia meadows to be seen from the surface.
The extensive Posidonia meadows play an important role in maintaining the clarity and quality of these waters. The official tourism information for Formentera describes Posidonia as a natural purifier and highlights its importance in maintaining the island's famous crystal-clear sea. TTurismo de Formentera
The result is the characteristic underwater landscape of Ibiza and Formentera: pale sand, rocks, green meadows and different shades of blue that change with depth and light.
It is one of those cases where the beauty we see from the boat has its explanation beneath the water.
Snorkelling in Ibiza: Discovering the Mediterranean Without Rushing
You do not need to go scuba diving to enjoy the marine life of Ibiza.
Snorkelling allows you to discover this world with a pair of goggles, a snorkel and, if desired, fins.
The key is not to swim long distances.
It is to observe.
In rocky areas, we can find small fish sheltering among the cracks. Above Posidonia meadows, we can observe different species moving between the leaves.
Calm, shallow waters are especially enjoyable for those who are just starting out.
And the more time we spend looking, the more things we begin to discover.
Snorkelling also has something special about it: it requires no great expertise. Just curiosity and a desire to see the Mediterranean from a different perspective.

Snorkelling in Formentera: Sand, Rocks and Posidonia
Formentera is particularly well known for the clarity of its waters and the variety of its seabeds.
The island combines large stretches of white sand, rocky areas and Posidonia meadows, creating different environments for marine life.
The official Formentera tourism guide highlights the combination of white sandy bottoms, spectacular rock formations and Posidonia as one of the reasons the island is particularly suited to snorkelling.
From a boat, this diversity can be appreciated in a completely different way.
In a single day, you can cruise over turquoise waters, stop for a snorkel and then continue towards another part of the coastline.
Places such as Ses Illetes, Espalmador, Cala Saona and Es Caló allow you to discover different landscapes of the island from the sea, combining cruising, swimming and moments of tranquillity.
But there is no single perfect place for snorkelling.
The choice depends on the wind, sea conditions, visibility and the conditions on the day.
Discovering Marine Life from a Boat
One of the great advantages of exploring Ibiza and Formentera by boat is the freedom it provides.
From a boat, you can move towards a quieter area, look for better visibility or change location if a particular cove is too crowded.
You can also combine different experiences throughout the same day.
A first stop for a swim in turquoise waters.
Some time snorkelling around a rocky area.
Cruising along the coastline.
Stopping for lunch.
And getting back into the water before heading home.
The boat becomes much more than a means of getting around.
It becomes your starting point for discovering the Mediterranean at your own pace.
When Is the Best Time to Go Snorkelling?
When it comes to enjoying the seabed, depth is not always the most important factor.
Sea conditions matter much more.
Days with little wind and calm seas tend to provide a better experience, especially because underwater visibility improves when there is less movement in the water.
It is also worth choosing the right time of day.
The early hours can offer a particularly peaceful atmosphere and, during the busiest months of summer, choosing quieter areas can make a significant difference.
In any case, the best route will always depend on the conditions of the day.
The Mediterranean sets the pace.
How to Enjoy the Sea Without Damaging Posidonia
Understanding this ecosystem also means learning how to protect it.
Posidonia grows slowly and can be damaged by certain activities. That is why one of the most important rules when boating around Ibiza and Formentera is to avoid anchoring on Posidonia meadows and always respect designated anchoring and mooring areas. Formentera specifically has introduced measures to regulate anchoring in order to protect these underwater meadows. TTurismo de Formentera+1
We can also contribute through a few very simple actions:
- Do not throw rubbish into the sea.
- Do not uproot plants or collect marine animals.
- Do not feed the fish.
- Do not lift rocks to look for marine life.
- Do not touch the Posidonia.
- Respect protected areas and navigation regulations.
The best way to enjoy the Mediterranean is to leave it almost exactly as we found it.
A Different Way to Experience Ibiza and Formentera
After discovering what lies beneath the water, it is difficult to look at the Mediterranean in quite the same way again.
The sea is no longer simply blue.
Now we know that beneath the surface there are Posidonia meadows, schools of fish, octopuses, cuttlefish, small invertebrates and an enormous network of life that depends on the balance of these seabeds.
Ibiza and Formentera are known for their beaches, coves and turquoise waters. But much of what makes the Pitiusas so special can be found precisely beneath them.
Cruising, stopping for a swim and putting on a pair of snorkelling goggles can be enough to discover it.
At Be Charter Ibiza, we believe that enjoying the Mediterranean also means getting to know and respecting it. Every trip can be an opportunity to discover the islands from another perspective: from the freedom of cruising and the tranquillity of observing what happens beneath the water.
Because the true luxury of Ibiza and Formentera is not only what we see from the boat.
It is also everything that exists beneath it.
Discover Ibiza and Formentera from the Sea
A day on a boat allows you to combine cruising, swimming, snorkelling and discovering the coastline at your own pace.
Discover Be Charter Ibiza and start planning your next day on the Mediterranean.





