Often called "The Green Canyon," this National Park is one of the most biodiverse areas in the country.
A Masterpiece of Engineering
The Jiu Valley is famous for its "Iron Road." To connect the two sides of the mountains, engineers had to build a complex system of 43 bridges and viaducts and 38 tunnels.
- Driving through it feels like a movie scene, as the railway lines appear and disappear into the rock high above the road.
- It took over 60 years to complete this railway, often referred to as the most difficult technical achievement of the Romanian rail system.

A high-angle realistic view of the Jiu Valley Canyon in Romania during autumn, showing the Jiu River flowing between steep cliffs, historic stone railway viaducts with tunnels, and a winding road through vibrant orange and red forests.
At the heart of the canyon lies the Lainici Monastery (see more), a spiritual oasis with a fascinating past.
The Secret of the Name: The word "Lainici" is shrouded in mystery. Some say it comes from a Greek word meaning "stone paths." However, a local legend tells of the "Laini"—ancient tribes or groups of outlaws who lived in the hidden caves of the canyon.
During the World Wars, the monastery and the surrounding cliffs served as a refuge. It is said that the monks knew secret paths through the rocks that allowed them to vanish into thin air when searched by enemy soldiers, leading to tales that the canyon itself "swallows" those it wishes to protect.
Why Visit the Jiu Valley Canyon?
- Rafting Adventures: The Jiu River is the premier destination for white-water rafting in Romania. Its fast currents and rocky bed provide an adrenaline rush like no other.
- The "Sphinx" of Lainici: High on the ridges, keep an eye out for rock formations that resemble mysterious faces carved by wind and rain.
- Biodiversity: It is one of the few places where you can still see the virgin beech forests that make Romania's nature so unique.
As you are now deep in the Parâng and Vâlcan wilderness, remember:
-Wild animals are unpredictable. This canyon is a vital corridor for brown bears and lynx. If you pull over in the designated parking areas, avoid wandering too deep into the thickets.
-Road Safety: The DN66 road is spectacular but narrow in some parts, with many curves. Watch out for falling rocks during heavy rains and stay focused on the road.
A video wich present the stunning Jiu Valley Canyon (Defileul Jiului):
FAQ: Jiu Valley Canyon
1. Is the road through the canyon in good condition? Yes, the DN66 (E79) has been modernized and is in excellent condition, making it a pleasure to drive. It connects Târgu Jiu to Petroșani.
2. Can I visit the Lainici Monastery? Yes, the monastery is open to visitors. It is a peaceful stop where you can see the "New Church" with its unique interior paintings. Please dress respectfully.
3. Is the Jiu Valley Canyon part of a National Park? Yes, it is the Defileul Jiului National Park. This means that picking plants, leaving trash, or disturbing the wildlife is strictly prohibited and carries heavy fines.
4. Can I go hiking in the canyon? While there are trails leading up into the Parâng or Vâlcan Mountains from the canyon, they are quite steep and demanding. Always use a map and check the weather before ascending.