What makes it "Smelly"?
The cave's name comes from the strong smell of sulfur it emits. It is a mofette—a dry post-volcanic discharge consisting mainly of carbon dioxide CO2 and traces of hydrogen sulfide.
Because carbon dioxide is heavier than air, it settles at the bottom of the cave like an invisible lake of gas. This is why you will see a yellow line of sulfur deposits on the cave walls, marking the "level" of the gas.
Natural stone entrance of Puturosu Cave with wooden logs outside.
Local folklore tells a story of a wealthy but greedy nobleman who once lived in the area. It is said that he hid a massive treasure—gold coins, precious jewels, and silver artifacts—deep inside the cave to keep it safe from invaders and thieves.
To ensure no one would ever steal his riches, the nobleman struck a bargain with the spirits of the mountain. He asked them to guard the entrance with an invisible, deadly breath. The spirits agreed, filling the cave with the "smell of hell" (the sulfurous gas).
According to the legend, the gold is still there, buried deep beneath the yellow-stained rocks. However, the "invisible guardian" (the CO2 gas) remains on duty. Any treasure hunter who dares to kneel or bow down to pick up a golden coin is immediately struck down by the mountain's breath, falling into a permanent sleep. Locals say this is why the gas line stays at a certain height—to lure the greedy into bending down, only to meet their end.
History & Local Healing
For centuries, locals have known about the cave's therapeutic effects. In the past, people used it as a primitive but effective treatment for various ailments. Today, it is scientifically recognized for helping with:
- Cardiovascular diseases: The gas acts as a natural vasodilator.
- Rheumatism: Helping to reduce inflammation.
- Skin conditions: Thanks to the high sulfur content.
While beneficial, the gas can be dangerous if not respected.
The "Dead Zone": You must never bend down below the gas line (the yellow mark on the walls). Since CO2 replaces oxygen at the lower level, it can cause instant suffocation.
Unpredictability: As with everything in the wild, nature is unpredictable. Visitors should always stand upright and never enter the cave alone or during extreme weather changes.
The Sulfur Mountain (Muntele Puturosu)
The cave is part of a larger volcanic complex. Nearby, you can find other "smelly" attractions like:
- The Birds' Cemetery: A small hollow where the gas concentration is so high that birds flying too low are instantly overcome.
- The Buffogó Peat Bog: Where volcanic gases bubble up through the water, creating a "boiling" effect in the mud.
FAQ: The Smelly Cave
Q: Is it safe to visit?
A: Yes, as long as you remain standing. The gas level usually reaches about waist or chest height. As long as your head is above the sulfur line, you are breathing fresh air.
Q: How long should I stay inside?
A: For therapeutic purposes, most people stay between 10 to 20 minutes. Always consult a doctor if you have underlying health issues.
Q: How do I get there?
A: It’s a pleasant 30-minute hike from the Balvanyos Resort area through a beautiful pine forest.
