The well of Pisão is located in the Caima river, between Santa Cruz and the bridge of Pisão. The river here runs with great force in the winter, digging numerous giant kettles. It was once the setting for a trout nursery, with a bypass channel in the river which led to a small island. The Pisão well is located in an embedded valley with high margins and cliffs covered with dense vegetation, making it difficult to access. This setting makes this place an incomparable beauty site, where running water and lush vegetation come together in a unique harmony, offering habitat to numerous species of fauna and flora that find refuge here. Today are no longer trout at this site, but portuguese nase, barbel and iberian chub can still be observed.