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Agios Georgios Cave – A Stunning Natural Wonder in Kilkis
Agios Georgios Cave (also known as Saint George’s Cave or Spilaio Agiou Georgiou) is the most famous landmark in the city of Kilkis and one of the most remarkable caves in Greece. With its striking rock formations, fascinating history, and even therapeutic benefits, it promises visitors a truly unforgettable experience.
Exploring Saint George’s Cave
The cave unfolds across two levels, covering about 1,000 m², with a specially designed visitor path of 300 meters. Its labyrinth-like corridors are both narrow and tall, shaped in part by ancient ceiling collapses. Inside, you’ll discover six striking chambers, where the air is always crisp and fresh—the humidity stays at 95% and the temperature remains between 15–17°C all year round. It’s the perfect place to cool down in summer or enjoy a refreshing walk in winter.
The Discovery of the Cave
The story of Saint George’s Cave begins around 1925, when quarryman Georgios Pavlidis stumbled upon one of its natural entrances while working in a limestone quarry at the foot of Saint George Hill. The first official mapping came in 1960, led by Anna Petrocheilou, president of the Hellenic Speleological Society. Extensive works to prepare the cave for visitors started in 1977 under her guidance and lasted seven years. In 1986, the cave finally opened to the public and has since been proudly managed by the Municipality of Kilkis.
Scientific & Paleontological Significance
Beyond its beauty, the cave is of great scientific importance. Excavations have revealed over 300 fossilized animal bones dating back 10,000 to 100,000 years. These include remains of hyenas, foxes, wild oxen, small horses, deer, and rodents. Research suggests that the cave once served as a hyena den, where bones of prey were dragged and left behind.
With no air currents inside, the cave has developed rare stone corals along with dazzling stalactites and stalagmites. Many of these formations resemble curious shapes, inspiring names such as “Rhino,” “Snake,” “Monk,” and “Flamingo.” Although some formations were badly damaged by past visitors, the cave still preserves much of its breathtaking natural charm.
Healing Properties – Speleotherapy in Kilkis
What makes Saint George’s Cave truly special is its therapeutic microclimate, known far beyond Greece. Studies by Czech scientists have shown that the cave is ideal for speleotherapy—a natural treatment for respiratory conditions. Its environment is especially beneficial for those with asthma, chronic lung diseases, or certain allergic skin conditions. Children often respond very well to therapy here, and many visitors also report feeling refreshed, energized, and revitalized after their visit.
Location – Getting There
The cave lies on the southwestern slopes of Saint George Hill, just outside the city of Kilkis. Getting there is straightforward, with easy road access and a dedicated parking area. Although signage is limited, using GPS makes the journey stress-free.
A visit to the cave pairs perfectly with a trip to the Paleontological Museum of Kilkis, where many of the fossils from the cave are displayed. The museum is located on the second floor of the municipal recreation building, only a short distance away.
Opening Hours & Tickets
- Open: Wednesday to Sunday, 08:30 – 13:30
- Closed: Monday & Tuesday
- Last admission: 12:50
- Tickets: €5 adults, €2 groups, free entry for children
- Contact: +30 694 5391 531
Why You Should Visit Saint George’s Cave
Whether you’re exploring Northern Greece or looking for a unique day trip from Thessaloniki, Saint George’s Cave is a destination you won’t want to miss. It brings together natural beauty, history, science, and health benefits in one extraordinary site. From curious rock formations to ancient fossils and even healing properties, this is one of the top attractions in Kilkis—a place that will stay with you long after your visit.