Sofia to Prohodna Cave and Devetashka Cave: Private day trip

Journey into this mystifying karst tunnel, often called the "Eyes of God" for the two massive holes in the ceiling that mimic eyes and lend the entire cave a surreal beauty.

What to see

• Huge, naturally carved entrances to the tunnel, forming dramatic cathedral-like arches
• The iconic "Eyes of God," which become particularly stunning with sunlight streaming through them on bright days

What to do

• Enjoy scenic walking trails around and through the cave
• Rock climb some of the best routes in Bulgaria (not beginner-friendly, suitable for advanced climbers)
• For a thrill, try bungee jumping off the cave's largest entrance

Take note

• Adventure activities such as bungee jumping or sport climbing should be booked in advance online through local guide companies

What to bring

• Prepare to explore by packing sturdy walking shoes, plenty of water, and sun protection for walks outside of the cave

Explore one of the most dramatic and famous caves in Bulgaria, known for its seven massive ceiling "windows" and significant bat population.

What to see

• Huge ceiling openings that provide mystical lighting and elevate the dramatic beauty of the cave
• Vast entrance hall that welcomes visitors with immediate natural grandeur and is favored by photographers
• A flowing river surrounded by lush vegetation runs throughout the cave

What to do

• Walk the trails and bridges built when the cave acted as a military base in the 1950s
• Take photos in the same places featured in movies filmed here, such as "The Expendables 2"

What to bring

• Prepare to explore by packing sturdy walking shoes, plenty of water, and sun protection for walks outside of the cave