Berlengas

The Berlengas are small islands in the sea.

They sit near the land of Portugal. One island is very large. It is called Berlenga Grande.

The islands are made of pink rock. This rock is very rare in Europe. There is not much soil here. Because of this, only a few plants grow.

Many sea birds live on the islands.

You can also see fish in the water. The water is full of life. It is a special place for nature.

There is a big fort on a small islet.

People can stay there to rest. The islands are a protected place. This helps the animals stay safe.

The Berlengas are small islands in the Atlantic Ocean.

They sit near the coast of Peniche, Portugal. The largest island is called Berlenga Grande.

Other small groups of islands are nearby. These are the Estelas Islets and the Farilhões-Forcados Islets.

The islands are made of a rare pink granite.

This rock is very common in America but rare in Europe. There is very little soil here. Because of this, only bushes and grasses grow. Some plants, like Armeria berlengensis, live only on these islands.

Many animals call this place home. Sea birds, like gulls, nest on the rocks.

The water is full of life, too. You can see fish like mackerel and bass.

The islands have many caves and tunnels. One is called Furado Grande. It is a large natural tunnel that goes through the island.

A big fort also sits on a small islet nearby.

It was built using rocks from an old monastery.

The Berlengas are a group of small islands in the Atlantic Ocean.

These islands sit near the coast of Peniche in the Oeste region of Portugal. The largest island is called Berlenga Grande.

There are also two groups of smaller islets called the Estelas and the Farilhões-Forcados.

Because they are part of a protected reserve, most people only visit for science or summer trips. This area helps keep the local plants and animals safe.

The islands are made of a very special kind of pink granite.

This rock is rare in Europe but very common in America. Over a long time, wind and waves have shaped the land into many interesting forms. You can find narrow valleys with steep walls and many deep caves. One famous spot is Furado Grande, which is a huge natural tunnel.

This tunnel is so wide and tall that it goes all the way through the island. The islands also have a jagged coastline with many small coves and arches.

People have visited these islands for a very long time.

Ancient writers like Ptolemy knew about them, and Romans called the island Saturno. Many different groups like the Vikings and Muslims visited the islands too. In 1513, monks built a monastery to help sailors who were in trouble from shipwrecks. Later, the rocks from that old monastery were used to build a strong fort.

This is the Fort of São João Baptista, and it sits on a small islet near the main island.

The weather on the islands is shaped by the Atlantic Ocean.

Strong winds often blow against the north-facing cliffs. In the summer, a special sea breeze called the Nortada can push cold water up from deep in the ocean. This brings many nutrients to the surface, which helps sea life grow. The islands have a Mediterranean climate with heavy rains in the winter. Because of the clouds and fog, there are not many hours of bright sunshine.

Life on the islands is very busy both on land and in the sea.

There are about 100 types of plants, including some that grow nowhere else on Earth, like Armeria berlengensis.

Many sea birds, such as gulls and the peregrine falcon, use the islands to nest.

Under the water, the area is full of fish like mackerel, bass, and swordfish.

You might even see schools of grey triggerfish swimming by.

It is a very special place where the land meets the deep ocean.

The Berlengas are a Portuguese archipelago located in the Atlantic Ocean. These small islands sit off the coast of Peniche in the Oeste region of Portugal.

The archipelago includes the largest island, Berlenga Grande, and two groups of islets. These groups are named the Estelas Islets and the Farilhões-Forcados Islets.

Today, the area is part of the Reserva Natural das Berlengas. This is a protected area designed to safeguard local flora and fauna. Because of this protection, the islands are mostly visited by scientists and summer tourists.

The islands are formed by unique geological processes. Most of the archipelago consists of pink granite. This specific type of rock is very rare in Europe but common in America.

The granite and metamorphic rocks have been shaped by long periods of erosion. This erosion has created many distinct landforms. You can find narrow valleys with vertical walls called carreiros. The islands also feature numerous caves and marine tunnels. One famous example is the Furado Grande.

This is a massive natural tunnel that crosses through the entire island. The coastline is very jagged, filled with coves, arches, and small islets.

Geologists believe the archipelago may have originated as a horst. A horst is a raised block of the Earth's crust. The islands likely spent long periods underwater in the past. Evidence for this includes a flat surface on Berlenga Grande called a marine abrasion platform. This platform contains potholes formed while the land was at the bottom of the sea. There are also marine terraces that look like old beaches at high altitudes. These features suggest that sea levels changed significantly during quaternary glaciations. The islands also show evidence of being part of a larger block in the past.

Human history on the islands spans thousands of years. Ancient writers like Ptolemy referred to the islands as Londobris. Roman geographers later called the island Saturno. Over time, Muslims, Vikings, and privateers all visited the area. In 1513, monks from the Order of São Jerónimo established a settlement. They built the Monastery of the Misericórdia da Berlenga to help sailors. This monastery provided aid to victims of frequent shipwrecks. However, the monks eventually left due to disease and poor communication caused by bad weather.

Later, the islands served a defensive purpose. During the reign of King John IV, the council of war used monastery ruins to build a fort. This is the Fort of São João Baptista das Berlengas.

The fort sits on a small islet connected to Berlenga Grande by a causeway. By 1655, the fort had already resisted attacks from three Barbary Coast pirates. In 1841, a lighthouse was built on the islands. In the 20th century, a solar panel was added to the lighthouse column. Today, the fort has been retrofitted as a rest house for tourists.

The climate of the Berlengas is a Mediterranean type, specifically classified as Csb. The weather is strongly influenced by the Atlantic Ocean and strong winds.

The northern and northwestern coasts experience very powerful winds. In the summer, a phenomenon called upwelling occurs. This happens when a sea breeze known as the Nortada pushes surface water offshore. Cold, nutrient-rich water from deeper layers rises to replace it. This process creates frequent summer mists and supports rich marine life. While winters bring heavy rains, summers remain relatively cool with moderate temperature changes.

Life on the islands is highly specialized. There are about 100 plant species, including endemics like Armeria berlengensis.

These plants must survive high salinity and strong winds. The islands are also a vital breeding ground for seabirds.

You can find gulls, peregrine falcons, and the common murre here. The marine environment is equally productive. The islands sit on the edge of the continental shelf. This location acts as a meeting point for many fish species.

You might see mackerel, swordfish, or schools of grey triggerfish.

In 2011, UNESCO included the Berlengas in the World Network of Biosphere Reserves.