In the castle yard, near the 15th-century chapel, there is a well 30 meters deep. According to the legend, this fountain was dug by twelve Turkish prisoners to whom liberty was promised if they reached water. After 15 years they completed the well, but their captors did not keep their promise. It is said that the inscription on a wall of the well means "you have water, but not soul". Specialists, however, have translated the inscription as "he who wrote this inscription is Hasan, who lives as slave of the giaours, in the fortress near the church".
In February 2007, Corvin Castle played host to the British paranormal television program Most Haunted Live! for a three-night live investigation into the spirits reported to be haunting the castle. Results were inconclusive.