Eremo di San Michele, Cave church and hermitage in Foglianise, Italy.

The Eremo di San Michele Arcangelo is a hermitage on the southern slope of Monte Caruso in Foglianise, built around a rock cave and a spring that dries up in summer. It is arranged on three levels from different periods: the church is set in the mountain cavity, and below it a convent served as residence for the hermit who guarded the shrine. From the site there is a wide view over the Vitulanese Valley and the surroundings of Benevento.

The hermitage dates to the Lombard era, after the people of Sannio converted to Catholicism through the preaching of Saint Barbatus, bishop of Benevento, in the 7th century. A bell bearing the image of the Virgin Annunziata was added in 1587, and the 17th-century frescoes are by the Benevento painter Piperno. Popes Clement VIII and Clement XI granted indulgences to its pilgrims. Cardinal Vincenzo Maria Orsini visited in 1692 and returned on 16 November 1707 to consecrate the altar and bless the bell.

The hermitage is dedicated to Saint Michael the Archangel, whose cult spread among the Lombards after their conversion to Catholicism. Pilgrims still come on 29 September, the feast of Saint Michael, and on 8 May; popes Clement VIII and Clement XI granted indulgences to those who visited.

Visiting is most comfortable in good weather since the paths are uphill and sometimes uneven. Being set in nature means wearing sturdy shoes and allowing time for the climb up to the site.

The hermitage's water comes from a spring beside the rocky cave, and it runs dry in summer. The last hermit lived here until 1949, after which the building was declared unfit and closed for worship; it has since been restored and opens on Sunday mornings.