An adult male stands within the Prohodna Cave, located near Karlukovo, Bulgaria

An adult male stands within the Prohodna Cave, located near Karlukovo, Bulgaria. The subject, dressed in a black hoodie, black pants, a dark baseball cap, and light-colored athletic shoes, stands on uneven, rocky ground, with his hands in his pockets. He is positioned towards the center-right of the frame, facing away from the viewer, with his head tilted upwards, gazing towards the cavern's ceiling. The cave features immense, rugged limestone walls with visible striations and texture. The most prominent feature of the cave's ceiling is two large, elliptical natural openings, commonly referred to as "God's Eyes," through which bright daylight streams down. Above these openings, a clear sky is visible, along with sparse, bare tree branches and faint horizontal power lines spanning the upper opening. The internal rock formations consist of massive, textured outcroppings and a generally dark, shadowed interior illuminated by the stark contrast of the daylight from above.