The loop itinerary that starts from Monte Grimano Terme and passes through Ca' Secco offers an immersive experience amidst history, nature, and evocative landscapes. Here is a detailed description of the main stages: Departure from Monte Grimano Terme: Begin the excursion by exploring the historic center of this medieval village, characterized by narrow streets, historic buildings, and a panoramic view of the surrounding valley. Trail towards Ca' Secco: Leaving the village, take the path that leads to Ca' Secco. Along the way, you will cross hilly landscapes typical of the Marche region, with broad views over the Conca River valley and the surrounding hills. Stop at Ca' Secco: This location, situated at about 420 meters above sea level, offers a privileged panoramic position overlooking the Conca valley and the inhabited area of Monte Grimano Terme. It is the ideal place for a regenerating break, admiring the landscape and perhaps delving into local history. Ascent to Mount San Lorenzo: Continuing, the trail will take you towards Mount San Lorenzo. During the ascent, you can enjoy panoramic viewpoints that offer breathtaking views of the Montefeltro hills and, on clear days, all the way to the Adriatic coast. Monte San Lorenzo Astronomical Observatory: On the southern slope of the mountain, reachable by following the provincial road SP130, is the Astronomical Observatory. This place represents a unique opportunity to deepen your knowledge of the sky and astronomy, immersed in a natural context of rare beauty. Return to Monte Grimano Terme: After visiting the observatory, the loop trail will lead you back to the starting point, passing through further panoramic views and offering the opportunity to fully immerse yourself in the untouched nature of the area.

The Water Circuit of Sassofeltrio and Via dei Borromeo represents one of the most scenic and panoramic routes in the Monte San Paolo area, crossing the territories of the municipalities of Monte Grimano Terme and Sassofeltrio. This route combines natural beauty, history, and breathtaking views of the entire valley." Monte Grimano Terme, the ideal starting point for the route, is a village in the Marche region located in the heart of Montefeltro, listed among the Most Beautiful Villages in Italy. The town is renowned for its sulfurous thermal baths, which have been a source of wellness and natural health since the 15th century. Sassofeltrio, perched on a cliff at an altitude of about 466 meters, overlooks the Val Conca with spectacular views stretching from the Adriatic Sea to Mount Carpegna and Mount Titano. The village is known as the "Terrace of Montefeltro" for its exceptional panoramic vistas. Summary table of the itinerary  Feature Detail Full Name Water Circuit of Sassofeltrio and Via dei Borromeo Type Mixed route: trekking + mountain bike (MTB) Trail status Open and accessible Total length Approximately 10–13 km (depending on the variant) Positive elevation gain Approximately 450–500 meters Negative elevation gain Approximately 450–500 meters Difficulty Medium (E – Hiking) Estimated duration 4–5 hours (with breaks) Minimum altitude Approximately 300–350 meters above sea level (Valle Sant’Anastasio) Maximum altitude Approximately 800–860 meters above sea level (Monte San Paolo ridge) Main surface Trails, dirt roads, white roads Recommended starting points Monte Grimano Terme (village) or Sassofeltrio (Valle Sant’Anastasio) Main points of interest - Trail of Secrets - Cippo of Garibaldi - Sulfur Water Trail (Valle Sant’Anastasio) - Via dei Borromeo (Monte San Paolo ridge) - Cross of Monte San Paolo - Views of Valconca and the Adriatic Coast Trail accessibility Suitable for trained hikers and cyclists with good preparation; not recommended after recent rain due to muddy sections Best period Spring (April–June) and Autumn (September–October) Recommended equipment Trekking shoes or MTB, technical clothing, water, rain jacket, map or GPS track Events related to the route Granfondo La Via dei Borromeo, Ride4Bronz, trekking organized by Bike-Advisor and Pro Loco

A medium-distance loop trail, very scenic, exploring the slopes of Mount San Paolo in the territory of Monte Grimano Terme, along ancient forest paths that have been restored for hiking and educational purposes. The ascent follows the famous Sentiero dei Segreti (Path of Secrets), which passes through a dense mixed forest and leads to the Garibaldi Monument on Mount San Paolo, before descending along the Sentiero di Suripe, also of historical origin, completing a varied and nature-immersed route. The loop has a medium hiking difficulty, suitable for walkers with a minimum level of fitness and also passable by mountain bike, featuring regular ascents, shaded forest sections, and wide panoramic views over the Valconca, the Montefeltro, and the Apennine ridge. The trail lends itself to naturalistic, historical, and scenic purposes, integrating with the network of trails in the Monte Grimano Terme area and the narrative of Mount San Paolo as a "mountain of the community," rich in memories and ancient communication routes.