The fortress, recently restored and made usable, perched on a rock overlooking the town, is a collection of various eras... and a ruin but still communicates its mighty size
Bagni San Filippo in the Val d'Orcia will seem to take you to another world. The good thing is that there is an easy path that runs along the river and provides easy access. Access to these hot springs is completely free! If you follow the path further into the woods, you reach the massive formation of calcium and waterfall that has earned the nickname of the "White Whale". Here, the hot water of the springs meets the cold water of the river, giving the water a white-blue color that contrasts deeply with the green woods, creating a fascinating setting, particularly once the weather cools down and the warm water meets the cold air. If you keep walking further, you'll reach the rest of the pools that form the full Fosso Bianco right by the paid spa where their pool releases water down into the outdoor pools, increasing the water's temperature. The area has countless pools in which to sit down and relax!