Through section 28, EuroVelo 1 takes us on a tour of the Greenway of Los Molinos del Agua, between Valverde del Camino and San Juan del Puerto, along the former railway line of the El Buitrón mining company. This was the first mining railway in the province of Huelva and operated between 1870 and 1969.
From Valverde del Camino, opposite the Huerta de Arturo Park, we take EuroVelo1, which runs along a gentle downward slope, parallel to the N–435, surrounded by farms and some Mediterranean grasslands.
The route, later, takes us into the Park of the Saltillo and Lomero Llano, allowing us to enjoy the good shade provided by the oaks, cork oaks, and the centennial piñoneros pines that mark our itinerary.
After leaving the park behind, EuroVelo 1 moves away from the national route until approaching it once more at the small town of Beas. Here it crosses the HU–3104 very near the municipal cemetery.
At this point, we have the option to head off towards Beas and from there to cover about fifteen kilometres by road passing the Hermitage of Los Clarines and later arriving at the small town of Niebla. Niebla is a millenarian villa and the old capital of the County of the same name. It stands on a hill above the Tinto River, within a walled enclosure which protects one of the most beautiful towns in Huelva.
Within the city walls part of its old layout is preserved, and among its monuments we can highlight the Alcazar de los Condes de Niebla, the Church of Nuestra Señora de la Granada, the Roman Bridge and the Aqueduct.
If we decide not to leave EuroVelo 1 and continue from Beas, after several more kilometres along the Greenway, we reach the town of Trigueros, located in the Tierra Llana and belonging to the region of El Condado de Huelva, on land dedicated to the cultivation of cereals, grapes and olives.
It has monuments of interest such as the Church of San Antonio Abad, the convents of Carmen and Santa Catalina and the Hermitage of La Misericordia.
In its surroundings, about ten kilometres away, is the Dolmen de Soto, a funeral construction from the Copper Age whose state of conservation makes it worth the effort.
San Juan del Puerto awaits us a few kilometres further on, where the section ends and EuroVelo 1 embraces the Tinto River again.