Best attractions and places to see in Chelmos – Vouraikos National Park, a UNESCO Global Geopark in the northern Peloponnese, Greece, offers a diverse array of attractions. The park is known for its geological heritage, biodiversity, and historical significance. Visitors can explore dramatic natural landscapes, significant cultural sites, and points of historical interest. The region provides opportunities to experience both natural wonders and historical landmarks.
Last updated: May 11, 2026
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Right by the train station are traditional tavernas, such as the famous "Romance Tavern," which has often served as a backdrop for Greek films. The station is a popular starting point for hikes through the gorge along the railway tracks, especially to Diakopto (approx. 12 km, 3.5-4 hours). Another trail leads up to the Mega Spileo Monastery, founded in the 4th century and built directly into a cliff face. The area is characterized by dense forests of plane trees, chestnut trees, and pines, as well as numerous waterfalls in the gorge.
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Zachlorou Station (also known as Mega Spileo) is a prominent station on the historic Diakopto-Kalavryta Railway. It is located in the picturesque village of Kato Zachlorou, nestled within the impressive Vouraikos Gorge. The station primarily serves as access to the famous Mega Spileo Monastery (Great Cave), which can be reached via a 45- to 60-minute hike. The station is part of the 750 mm narrow-gauge rack railway ("Odontotos"), which opened in 1896 and is considered one of the most spectacular railway lines in the Balkans.
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Tickets, including seat reservations, can be booked online through Hellenic Train or purchased at the Diakopto train station. Advance booking is highly recommended, especially during peak season and on weekends, as the train is very popular with groups. Many visitors use the train for a combined tour. A popular stop is the Zachlorou (Mega Spileo) station. From there, you can hike to the famous Mega Spileo Monastery or walk part of the way through the gorge along the railway tracks. The route is considered one of the most beautiful public transport routes in Europe and offers fantastic photo opportunities at a leisurely speed of 30-40 km/h. Unfortunately, bicycles are not permitted on the train.
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The Odontotos Rack Railway (Greek: Οδοντωτός) is one of Greece's most spectacular railway lines, connecting the coastal town of Diakopto on the Gulf of Corinth with the mountain village of Kalavryta. The railway winds through the impressive Vouraikos Gorge, past steep cliffs, through narrow tunnels, and over numerous bridges. The line is approximately 22 kilometers long. The journey takes about 60 minutes. It is a narrow-gauge railway (750 mm) with rack-and-pinion sections to overcome the steep gradients (over 700 meters of elevation gain). Modern multiple units from the Swiss manufacturer Stadler Rail are used.
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The site is designed as a place of silence and reflection: The White Cross: A monumental, highly visible cross dominates the hill. Memorial Plaques: Stone-carved plaques list the names and ages of all the victims of the massacre. Sculpture "The Petrified Mother": This statue symbolizes the pain of the women who had to bury their loved ones themselves after the massacre. Below the plateau is a small chapel (crypt) for prayers and candle offerings. Every year on December 13, a large official ceremony is held here in the presence of government officials.
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The Thysias memorial (Greek for "Place of Sacrifice") is the central memorial site on Kapi Hill, about 500 meters east of the town center. On December 13, 1943, one of the worst war crimes committed by the Wehrmacht in Greece took place at this location. German soldiers of the 117th Jäger Division marched all men and boys aged 13 and older to this hill. The site was deliberately chosen because it is shaped like a natural amphitheater. The men were forced to watch as their houses in the valley went up in flames before being shot with machine guns. According to official figures, hundreds of people were murdered in Kalavryta alone that day.
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As long as you're not afraid of heights, it's an absolutely wonderful experience. And don't worry, you'll hear the train coming beforehand. :-)
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Here begins the first of the three steep cogwheel sections
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The park is rich in natural beauty. You can explore the dramatic Vouraikos Gorge, known for its impressive cliffs and unique railway bridges. Another highlight is the Cave of Lakes (Spilaio Kastrion), a unique cave system with thirteen terraced underground lakes. Mount Chelmos (Aroania Mountains) offers stunning botanical diversity, and you can also visit picturesque Lake Tsivlou and Lake Doxa.
Yes, the park and surrounding area are steeped in history. Key sites include the impressive Mega Spileo Monastery, built directly into a cliff face, and the historic Agia Lavra Monastery. Kalavryta Town itself holds significant historical importance, including the Municipal Museum of the Kalavryta Holocaust. You can also find ancient archaeological sites like Loussoi and Ancient Kleitoria.
Absolutely! The Odontotos Rack Railway (Diakopto–Kalavryta Railway) offers a spectacular scenic journey through the Vouraikos Gorge. It's considered one of the most impressive railway lines in the Balkans. A key stop is Zachlorou train station, which provides access to hiking trails and the Mega Spileo Monastery.
The park offers diverse hiking experiences, from easy walks to more challenging trails. The Vouraikos Gorge is a popular hiking destination, with sections like the Vouraikos Gorge Pedestrian Tunnel providing unique passages. You can find various routes, including those leading to the Waters of Styx or around Lake Doxa. For more detailed information on routes, check out the komoot guide for Hiking in Chelmos – Vouraikos National Park.
Many attractions are suitable for families. The scenic journey on the Odontotos Rack Railway is a memorable experience for all ages. Easy walks are available, such as those around Lake Doxa or shorter sections of the Vouraikos Gorge. The Zachlorou train station area is also a good starting point for gentle explorations. For specific easy routes, refer to the komoot guide for Easy hikes in Chelmos – Vouraikos National Park.
The Vouraikos Gorge can be explored in several ways. The most iconic is by taking the Odontotos Rack Railway, which traverses the gorge. Alternatively, you can hike through sections of the gorge, experiencing unique features like the Vouraikos Railway Bridges and the Vouraikos Gorge Pedestrian Tunnel. Hikers should be aware that the railway tracks are shared with the train in some areas.
Kalavryta Town serves as a natural gateway to the geopark and is a significant hub. It's known for its monasteries, the Kalavryta Ski Center, and its profound historical importance, particularly the tragic events commemorated at the Municipal Museum of the Kalavryta Holocaust. The town also features unique pedestrian areas like Dimítrios Dapanákis Street, designed with embedded stone 'rails and sleepers' extending the railway theme.
Yes, the region offers various cycling routes for different skill levels. You can find routes around scenic areas like Lake Doxa or more challenging tours through the wider park landscape. For detailed cycling routes and their difficulty, consult the komoot guide for Cycling in Chelmos – Vouraikos National Park.
The Cave of Lakes, or Spilaio Kastrion, is a truly unique natural attraction. It's a rare cave system featuring thirteen terraced, cascading underground lakes, which are particularly impressive during winter and spring. The cave also boasts striking stalactite and stalagmite formations, and archaeological findings, including human and animal remains like hippopotamus fossils, have been discovered within it.
Visitors frequently praise the adventurous walking experiences over the Vouraikos Railway Bridges and the unique passage through the Vouraikos Gorge Pedestrian Tunnel. The dramatic scenery, with torrential waterfalls, caves, and rich vegetation, makes it a memorable experience. The journey on the Odontotos Rack Railway is also highly recommended for its spectacular views.
Chelmos – Vouraikos National Park is recognized as a UNESCO Global Geopark due to its remarkable geological heritage. You can learn more about its unique geological features, including the formation of the Vouraikos Gorge, the Cave of Lakes, and Mount Chelmos, by visiting the official UNESCO Global Geoparks website for Chelmos-Vouraikos UNESCO Global Geopark.


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