Quinta de Marim Trails

The Quinta de Marim Trails are signed nature walks at the headquarters of the Ria Formosa Natural Park, in Olhao on Portugal's Algarve coast. The trails start at the Centro de Educacao Ambiental at Quinta de Marim. From Faro, visitors take a bus or taxi to Olhao, about 15 minutes, and then cover the remaining roughly 3 km on foot or by taxi. Parking is available near the park centre, and entry conditions and any fee should be confirmed locally before visiting.

The signed trails cover a few kilometres in total and take 1 to 2 hours, depending on how many loops are walked. Terrain is flat with negligible elevation gain, and surfaces include compacted earth, sand and short boardwalk or path sections. Technical difficulty is minimal. The route offers more shade than other Ria Formosa walks, thanks to areas of pine woodland, though salt marsh stretches are exposed to sun and wind.

Landmarks include salt marsh, pine woodland and a restored tide mill, which illustrates the traditional use of the lagoon. The environmental education centre provides context on the lagoon's ecology, and the area is a good place for birdwatching, with waders and other lagoon species often seen. The trails are laid out as loops, so walkers can turn back at any junction to shorten the visit.

No refuge huts exist, but the park headquarters has facilities that may include water and information, subject to opening hours. Visitors should still bring at least one litre of water, a hat, sunscreen and closed walking shoes, and binoculars for birds. As the site sits within a protected natural park, walkers should stay on signed paths, avoid disturbing wildlife and take litter away. Spring and autumn bring comfortable temperatures and good birdlife, while summer afternoons can be hot.