Atlantic Islands of Galicia National Park

Listen first. Under the wind there is a steady hiss as Atlantic swell runs up pale sand and pulls back through the shell fragments. Overhead, gulls call without pause. The air smells of salt, warm pine resin and drying seaweed. The light here is clear and a little cold, even in summer, because open ocean sits just beyond the rocks in front of you.

You are standing in the Atlantic Islands of Galicia National Park. It is a protected place made of sea as much as land. The park brings together four small archipelagos off the southwestern coast of Galicia: Cíes, Ons, Sálvora and Cortegada. Most of the park is water. The seabed, the kelp and the currents are protected just as carefully as the beaches and cliffs. Spain declared the park in 2002.

To understand these islands, picture the coastline behind them. This part of Galicia is called the Rías Baixas. The rías are long inlets where the sea flooded old river valleys. The islands sit across the mouths of these inlets like barriers. They take the force of Atlantic storms, and the water behind them stays calmer. That calmer water is a large part of why fishing and shellfish farming have mattered so much on this coast.

The Cíes Islands are the group most visitors reach first. There are three main islands: Monteagudo in the north, the central island called Do Faro, and San Martiño in the south. The first two are joined by a long curve of sand and dunes. Behind that sand bar lies a quiet lagoon. On one side the water is open sea. On the other side it is almost still. Few landscapes show so clearly how a beach can build itself.

That curve of sand is Rodas beach. On a clear day the water near the shore turns a light green over white sand, and many first-time visitors find it hard to believe they are in northern Spain. But put a hand in the water. The Atlantic here is cold all year. The bright colour comes from clean sand and clear water, not from warmth. Swimmers usually go in quickly and come out laughing.

Now look west, toward the open ocean. The islands have two faces. The eastern side, facing the mainland, slopes gently into beaches and pine woods. The western side drops into steep granite cliffs, cut by wind and waves into caves and ledges. This contrast is the key to the whole park. One side gives shelter. The other side stands against the full weight of the Atlantic.

Those western cliffs belong to the birds. The islands hold large breeding colonies of seabirds, especially yellow-legged gulls, which nest in very large numbers across the rocks. You will also see the European shag, a dark diving bird with a green shine to its feathers. It often stands on rocks with its wings held open to dry. In spring, gulls defend their nests loudly, so keep to the paths and give them space.

Here is something most visitors miss. The richest part of the park is under the surface. The cold, nutrient-rich water feeds forests of large seaweeds, and these forests shelter fish, octopus, crabs and many small creatures. When upwelling brings deep water toward the surface, the whole food chain grows stronger. The birds on the cliffs depend on it. So do the fishing boats you may see working the channels between the islands.

Further north lies Ons, the only island in the park where a small community still lives. Its paths pass old stone houses, small fields and simple chapels. Island life here has long followed the sea. Ons is known for octopus, and a meal of it is a common reason to stay longer. Locals also tell of a deep cleft in the cliffs called the Buraco do Inferno, the Hole of Hell. According to one popular tale, the sea roaring inside it is the voice of lost souls.

The two smaller archipelagos feel even quieter. Sálvora guards the mouth of the Ría de Arousa, and it has a lighthouse and a long history of shipwrecks and rescues. A local legend links its families to a mermaid ancestor. Cortegada lies deeper inside the same inlet, close to the shore. It holds a laurel forest, a rare type of woodland that once covered much more of southern Europe. Walking under those dark, glossy leaves feels very different from the windy Cíes.

The islands have not always been wild. People farmed here, kept animals, fished and built chapels. Over the centuries, the islands were also exposed to raids from the sea. In the twentieth century, much of the land was planted with pine and eucalyptus trees. Today, park teams work to remove some of these introduced trees and help native plants return. Look closely at the hillsides and you can often see the difference between the two kinds of growth.

Protection here is strict, and that is a big part of the experience. The number of daily visitors is limited, and you need a permit before you travel, usually arranged when you book the ferry. Boats run in the warmer months from towns on the mainland. On the Cíes you will find very few bins, because visitors are asked to carry their rubbish back with them. It is a small effort, and it keeps the beaches clean.

The sea has tested this coast in recent memory. In late 2002, an oil tanker called the Prestige sank off Galicia, and oil reached many beaches, including parts of these islands. Thousands of volunteers came to clean the rocks by hand. Today the sand around you is clean again. But many people in Galicia still remember those months, and that memory is part of why local people value this park so much.

Before you leave, stand still for one more moment. Notice the wind on your face and the sound of the swell meeting the granite. Notice the gulls moving along the cliffs and the mainland hills across the water. As you walk back toward the boat, look down at the sand. Much of it is tiny broken shell, carried in by the ocean over a very long time, one wave after another.