Musinska Cave, located in the village of Musina near Veliko Tarnovo, has been explored and mapped for a length of about 380 meters. Speleologists found primitive traces and two entrances – dry and water. The cave has slopes with changes in height, and at the end of the main gallery there is a mud siphon.

The cave opens up the “Blue Lake” (Blue Pond), which is the beginning of a risky siphon. Legend tells of Roman gold sunk in one of the galleries. To reach the entrance, one must enter the village, then cross the river and follow the street along its right bank. In front of the cave, there are also remains of a water wheel and stone structures. This natural treasure is an important archaeological site in the region and attracts many visitors.