City/Town:Gyovren
Name of the place:Dyavolsko Gurlo (???????? ?????) / the Devils Throat
Country:Bulgaria
Region:Smolyan Province
Natural characteristics:cavern / waterfal
Location:https://goo.gl/maps/GBqkuxqNakJ2uhfT9
Reasons for its inclusion:legend has it that Orpheus descended through this impressive underworld to the kingdom of Hades in search of his stolen bride, Evredika (Eurydice). Orpheus was supposedly born in the Rhodopi Mountains.
Related stories or tales:https://bulgariatravel.org/the-devils-throat-cave-dyavolsko-garlo-cave/