Castro Marim: Salt Pans, Sapal and History

In Castro Marim, an important wetland, traditional salt production and historic buildings come together. As you explore the area, you encounter different facets of the place: waterbirds and fish spawning grounds in the nature reserve, crafts involving salt and lace, and traces of history. This variety offers several possible focal points for your trip, without requiring every experience to follow the same itinerary.

Sapal, Waterbirds and Fish Spawning Grounds

The Sapal de Castro Marim and Vila Real de Santo António Nature Reserve extends across the municipalities of Castro Marim and Vila Real de Santo António. It is a protected area and a Ramsar site. Its wetland serves numerous waterbird species as a passage, wintering and breeding area. Depending on the season, different birdwatching opportunities take centre stage: the area serves several functions for the animals throughout the year.

The waterways also contribute to the protected area's ecological importance. The Esteiros da Lezíria and da Carrasqueira are important spawning and breeding grounds for several fish species. Nature enthusiasts will therefore find not only a habitat for birds, but also an insight into the role of the waterways for fish. These two aspects complement each other without describing the same nature experience.

Salt Production and Seasonal Flor de Sal

Castro Marim's traditional sea salt is produced entirely by hand, using techniques passed down over centuries. A special seasonal variety is Flor de Sal: it forms as a fine layer of crystals on the water's surface in the salt pans and develops only on particularly hot days between July and September.

During harvesting, Flor de Sal is skimmed off with a special instrument without touching the bottom. It is then left unprocessed, dried in the sun and packaged. The time of year is therefore a useful distinction when planning your trip: the July-to-September period refers to the formation of Flor de Sal. Traditional sea salt, in turn, represents artisanal production and techniques passed down through the generations.

Route and Getting Around

The municipal “Salinas Tradicionais” route connects the Centro de Interpretação do Território, Salina do Félix and Casa do Sal along a route of approximately 3 km. Check the route conditions before setting out. Visits to Salina do Félix can be booked in advance; visits take place from April to October, weather permitting. Check the current visiting arrangements before making plans.

The Centro de Interpretação do Território is a visitor reception centre and also a starting point for walks and tours around the municipality of Castro Marim and the Baixo Guadiana. From there, you can enjoy views of the Sapal Nature Reserve and the mouth of the Rio Guadiana. Revelim de Santo António offers another vantage point over the Rio Guadiana and the Sapal.

The History of Salt and Historic Sites

Casa do Sal is located in a restored former warehouse known locally as “Balalaica”. The film “Safra” is shown there, depicting the various stages of traditional and industrial salt production and harvesting. The film thus complements the subject of artisanal production with that of industrial production.

The Forte de São Sebastião can also be understood through its architectural design. Its walled compound has an irregular layout and five bastions. At the Núcleo Museológico do Castelo, visitors can learn about the history of Castelo de Castro Marim through materials from different periods. The shape of a fortress and the castle's development over time thus offer two distinct ways to explore historical themes.

The exhibition at Casa de Odeleite focuses on the house and local territory, as well as the Rio Guadiana and Ribeira de Odeleite. Another theme is the political disputes over the ownership of the Terras da Ordem. The Igreja de Nossa Senhora dos Mártires, the Matriz de Castro Marim, contains depictions in the main and side chapels: São Gabriel dates from the 15th century, Nossa Senhora da Encarnação and the martyrs from the 16th century, and Santa Luzia from the 18th century.

Traditions Throughout the Year

Devotion to Nossa Senhora dos Mártires, the patron saint of Castro Marim, is expressed in a procession on 15 August. The Dias Medievais is an annual historical reenactment event that attracts thousands of people every year. Both traditions give a visit a cultural and religious dimension; check the event dates if you would like to plan your trip around them.

Local crafts also include fine bobbin lace for tablecloths, made by people outside their homes, and basket weaving. Baskets are woven from straw, reeds, rushes and palm leaves. Along with salt production, these crafts showcase different materials and techniques. This lets you focus your time in Castro Marim on nature, history or local traditions.

Discover more destinations: Odeleite, Magoito, Altura, Castro Marim, Faro, Alcácer do Sal, Portimão, Albufeira.

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