La Salina de Santa María de Jesús is an old artisanal salt mine converted into an environmental interpretation space within the Bay of Cadiz Natural Park, in the municipality of Chiclana de la Frontera. The sources consulted place it among the last active or recovered traditional salt mines in the bay, in a landscape of marshes, spouts and estuaries shaped by the historical relationship between salt water and human activity. From the surroundings you can see retaining walls, shallow water sheets, canals and the open environment of the Cadiz marshes, with special interest for bird watching and to understand how the salt exploitation worked. Its value is not only natural: it is also ethnographic, because it preserves the memory of the trades, the salt houses and the culture of the "white gold" in the bay. The salt mine is part of an area protected by the Bay of Cadiz Natural Park and is mentioned in local itineraries and outreach materials as a useful place for environmental education and landscape reading. The best time to approach is usually at high tide or during the hours of soft light, at dawn or late afternoon, when the reflection of the water and the activity of the birds are more visible. It is advisable to avoid hours of strong wind and intense heat, frequent in summer, because the environment is very exposed and with little shade. If visited as an interpretive walk, the experience improves in autumn and winter, when the marsh birds are usually more abundant.
