The “Na Rota do Javali” hiking trail is a 10.3-km loop trail that winds along the banks of the S. Simão and allows visitors to explore one of the most interesting areas of riparian vegetation in the municipality of Sardoal.

Starting near the chapel of S. Guilherme/Nossa Senhora da Saúde in Andreus (1), the trail initially follows a stone path to the banks of the Andreus Creek. At the end of this section, you will find a signposted optional detour to visit the Chapel of Barbilongos, now known as the Chapel of Nossa Senhora da Saúde (2).

This is a very old chapel, likely from the 16th century, which was renovated in 2001. Legend has it that plague victims came here to be treated by the friars, as the location had fresh air.

Next, the route passes through the Amarela Valley, heading toward the village of S. Simão. Here, you can cool off at the Fonte de S. Simão (3) – it is a spout fountain with access steps and, if the inscription marking its centennial is to be believed, it was built in 1840.

As you leave the village, you will come to the Ribeira de S. Simão. The route continues along the banks of the stream, allowing you to observe a variety of species characteristic of riparian areas, such as the alder (Alnus glutinosa), cattail (Thypha sp.), sedge (Carex sp.), royal fern (Osmunda regalis), yellow iris (Iris sp. spadicorus), and sarsaparilla (Smilax áspera). Well-defined fox and wild boar tracks are also common, particularly in the days following periods of rain. Here and there, you are very likely to come across wallows (or mud pits)—areas typically used by wild boars for their mud baths, which serve the dual purpose of regulating body temperature and aiding in deworming.

When the trail finally begins to move away from the Ribeira de S. Simão, you will find a sign pointing to the ruins of the Chapel of S. Miguel de Alferrarede (4), where, despite its condition, it is still possible to make out the narthex, the sacristy, the main chamber, and some ocher that can be glimpsed beyond the walls.The return to the starting point follows dirt paths that wind through wooded and cultivated areas, offering beautiful views, first of the village of S. Simão and then of Andreus