Guardamar’s dunes: the story of its century-old pine forest

Guardamar’s dunes are a belt of sand held in place by a pine forest covering around 800 hectares, planted to stop the sand from burying the town. What now looks like a forest that has always been there is, in fact, a feat of forestry engineering begun more than a century ago, when the urban centre of Guardamar del Segura was threatened by advancing dunes.

The threat was no exaggeration. Before the reforestation, the dunes moved inland, driven by the easterly wind, covering orchards, paths and the first houses. The response was a public project approved at the end of the 19th century and carried out over three decades. The result is the natural area enjoyed today by residents and visitors, with its Aleppo pines, the mouth of the Segura and a network of trails worth getting to know before setting out.

The origins of the pine forest that stopped the advancing sand

For centuries, Guardamar’s dune front moved unchecked. The wind carried sand from the beach inland, leaving the town trapped between the sea and an expanding desert. According to sources documenting the area, the dunes advanced by between 2 and 8 metres a year—fast enough to bury buildings within a few generations.

There were two problems. The sand was burying farmland and homes, while the mouth of the Segura River was at risk of silting up. The technical solution at the time was to stabilise the sand with vegetation: first, plants capable of holding the shifting dunes in place, followed by trees to stabilise the whole area and create soil.

The administrative starting point was approval of the Project for the Defence and Reforestation of the Dunes of Guardamar by Royal Order on 2 December 1897, as reported by iAmbiente in its historical feature on the area. From then on, a centuries-old problem became a scheduled plan of work, with nurseries and permanent forestry staff.

An arid climate that made planting difficult

The technical challenge in Guardamar was not just the shifting sand. The area is extremely dry. The same source classifies it as arid, with barely 250 mm of rainfall a year—a figure that leaves little room for young trees to take root.

Planting a forest on a sandy plain with so little rainfall meant choosing species that could withstand drought and salt, and tending the young plants until their roots reached layers of sand with some moisture. The Aleppo pine was the natural choice for its hardiness: it tolerates poor soils, withstands sea winds and can go for long periods without rain.

That adaptability explains why the forest is now made up mostly of Aleppo pines rather than more demanding species. The reforestation aimed to create a living barrier that could survive unaided in the harshest conditions on the Alicante coast. It was practical engineering, designed to last without constant care.

The wind made everything more challenging. The easterly blows strongly along this stretch of coast, carrying dry beach sand inland. Without vegetation to hold it in place, every storm pushes the dune front a few metres further. That is why the project’s first task was not to plant trees, but to stop the sand with low-growing plants and fences that would slow the wind near the ground.

Francisco Mira’s historic reforestation project

The central figure in this story is forestry engineer Francisco Mira y Botella. He directed the transformation of the sandy terrain into woodland and devised the stabilisation method that turned a plan on paper into a living landscape.

The work did not involve planting pines directly in loose sand. The dunes first had to be stabilised. Fences were erected and pioneer plants capable of taking root in unstable ground were sown. Trees were planted only once the sand was held in place.

Figures behind a three-decade project

The work continued from 1900 to 1930. Hundreds of thousands of trees were planted over those three decades, mainly Aleppo pines, with smaller numbers of palms, cypresses and eucalyptus. The scale of the planting explains why the pine forest now looks natural: six decades of growth in such a densely planted area have almost completely erased the signs of human intervention.

But the pattern is still visible to those who know what to look for. There are rows of trees, selected species and a clear boundary between the shifting dunes at the seaward edge and the established forest inland. These features show that the area was designed, rather than left to grow by chance.

Infrastructure and recognition

The reforestation involved more than planting. Nurseries were built to grow the young trees, forestry houses were constructed to accommodate staff, and a network of service tracks was created. In 1906, the house now known as Casa Museo Ingeniero Mira was built. It serves as an interpretation centre for the area and recalls the role of the project.

The project’s reputation reached the royal family. Alfonso XIII visited the reforestation site in 1923, showing that Guardamar had become a national reference point in the fight against coastal desertification. Every 31 January, the town celebrates Fiesta del Árbol, keeping alive the bond between the community and its forest.

A protected area within the Natura 2000 Network

Guardamar’s pine forest is important for more than its history. The dunes and woodland are recognised as a protected area and are part of the European Natura 2000 Network as a Site of Community Importance, under code ES5213025.

Within this area, the Generalitat Valenciana has designated a 19.78-hectare flora micro-reserve, at an altitude of between 1 and 15 metres above sea level, according to the official Dunes de Guardamar entry on the regional government’s environment portal. This designation focuses protection on the most sensitive parts of the dunes, where specialised plants survive that are no longer found on urbanised beaches.

Legal protection brings specific obligations for those managing the area and clear limits for visitors. This is an ecosystem subject to conservation rules that affect everything from the layout of the trails to the activities permitted.

In practice, Site of Community Importance status requires the authorities to maintain the conservation status of the habitats that led to the area’s inclusion in the European network. This means monitoring the health of the pine forest, controlling invasive vegetation and protecting the shifting dunes by the sea, which are a priority habitat. For visitors, the message is simple: these dunes are not just any sandy area where you can set up a parasol or make a path, but a protected space with rules worth knowing before entering.

Protected flora in the natural area

Plant life in Guardamar’s pine forest is arranged in bands running parallel to the sea. On the front line, pioneer plants such as marram grass survive on the shifting dunes, holding the sand in place with their roots. They grow alongside salt-tolerant species such as sea daffodil and sea holly.

Further inland lies the forest itself. The main tree is the Aleppo pine, Pinus halepensis, alongside the stone pine, Pinus pinea, as well as date palms and eucalyptus from the original reforestation. Beneath the canopy, Mediterranean scrub—including rosemary, thyme and rockrose—helps hold the soil in place and provides food for wildlife.

These bands are more than a minor botanical detail. The pioneer vegetation on the seaward edge holds the loose sand in place; if it is damaged, the wind will start pushing the dunes inland again. The forest depends entirely on that first line of vegetation continuing to do its job.

Wildlife: the chameleon as the star species

The most emblematic animal in the pine forest is the common chameleon. The area is one of its few habitats in Western Europe, making this reptile a symbol of the natural area and an additional reason to take care when walking through it. It is a discreet animal with slow movements, relying directly on the undergrowth for camouflage and hunting.

As well as chameleons, the forest is home to squirrels, hedgehogs and rabbits, and to a bird community that includes owls, hoopoes, terns and gulls. The proximity of the Segura estuary and the wetlands and salt flats of the region makes the area a stopping and resting place for migratory birds. Flamingos on nearby wetlands have become a familiar sight in the Vega Baja.

The chameleon’s slow movements are precisely what make it vulnerable. It does not flee quickly from people, so walking off the paths and removing branches or stones affect it more than they do other species. The basic rule for respecting the pine forest is to observe it without touching it or taking it from its branch.

The Segura River and the gola: a different landscape

Guardamar’s natural area does not end at the sand. The mouth of the Segura River, known as the gola, marks the southern boundary of the dune front and brings a different ecosystem from the pine forest: fresh and brackish water, reed beds and a constant stream of birds.

The gola was one of the most vulnerable points in the original project. A river that flows into the sea beside shifting sand risks having its mouth blocked by dunes. Stabilising the sandy area also helped secure the estuary and protect navigation and the drainage of the farmland.

Today, the gola is a fitting end point for a walk through the dunes. From there, it is easy to see how the river, pine forest and beach form part of the same coastal landscape. It is also one of the best places in the municipality to watch migrating birds.

The estuary area also preserves archaeological remains, a reminder that this stretch of coast was inhabited long before the reforestation. In some places, the sand that had threatened to bury the town for centuries covered ancient sites, meaning that the dunes themselves ended up acting as an unintended protective layer over the buried heritage beneath them.

Signposted routes through the dunes

Guardamar has organised visits to the area through a network of signposted trails. These let visitors explore the dunes, pine forest, farmland and estuary while staying on authorised routes. According to the tourist information sheets published by the Ajuntament de Guardamar (Town Hall), there are six routes of varying lengths and themes.

Ruta del Castillo: 1.2 kilometres

Ruta del Puerto: 2.7 kilometres

Ruta de las Dunas y la Gola: 3.2 kilometres

Ruta dels Tussals: 3.8 kilometres

Ruta del Río y los Cabezos: 4.7 kilometres

Ruta de la Huerta: 5 kilometres

Ruta de las Dunas y la Gola is the most direct option for anyone wanting to understand what makes this place special. It combines the dune front and the gola in a little over three kilometres, a manageable distance for almost any visitor. Ruta dels Tussals takes walkers into the sandy hills and the more established pine forest. The longest route, Ruta de la Huerta, links the forest with the agricultural landscape that the dunes once came close to burying.

Points of interest along the way

Within the natural area, Casa Museo Ingeniero Mira serves as a tourist office and houses a permanent exhibition about the reforestation. It is a good starting point for understanding what you will see along the way. Jardín Botánico Reina Sofía, set within the pine forest, brings together Mediterranean species and offers an educational complement to the trails.

There are also self-guided itineraries, including one devoted specifically to the reforestation of the dunes. They are designed to help visitors explore the area with its history in mind. These are good options for families and for anyone visiting Guardamar for the first time, as they let you explore at your own pace, stopping at the places that explain how the sand was stabilised and why the forest looks the way it does.

When to visit and what to bring

Spring and autumn are the best times to walk the dunes, when temperatures are mild and the forest undergrowth is at its greenest. Summer visits are possible early in the morning or at sunset, but the middle of the day can be punishing on the dune front, where there is no shade.

Wear closed-toe shoes, take plenty of water and bring sun protection. The pine forest provides shade, but open areas are exposed to the sun and the easterly wind, which stirs up sand and can make it feel much hotter or colder. Before setting off, it is worth checking the weather forecast for Guardamar del Segura, as sea and wind conditions affect both the beach and walks through the dunes.

The dunes are just a few minutes from Playa Centro and the town centre, so a visit fits easily around other plans in the municipality. If you want an overview of what the town has to offer, this guide to what to see in Guardamar del Segura, including beaches, dunes and the castle, can help you plan a full day out.

How to get there and where to park

Guardamar del Segura is well connected by the N-332 road, which links the town with Alicante to the north and Torrevieja to the south. From the town centre, the pine forest and dunes are just a few minutes’ walk away, following the avenues that lead down to the beach.

In peak season, it is worth arriving early to park near the entrances to the pine forest, as the parking areas by the beach fill up quickly in summer and at weekends. Outside the season, parking is rarely a problem. Visitors from elsewhere in the region can combine their visit with a local meal, as much of the municipality’s dining offer is concentrated in the area around the pine forest, just a few minutes’ walk away.

How to care for this unique natural area