The Caves of Heaven and Hell are the most striking landmark of Mersin
Cennet - Cehennem Magaraları is one of Mersin's most impressive landmarks. These enormous karst sinkholes are located in the village of Narlıkuyu, approximately 25 km from Silifke and near the coast. They formed over millennia when groundwater eroded the limestone, causing the roof to collapse, creating two gigantic sinkholes— Heaven and Hell.
What can you see here?
The Paradise Cave (Cennet Obruğu) is more open and accessible. It measures approximately 250 x 110 meters, with a depth of approximately 70 metersand 150 meters to the cave's lowest point. 452 steps, and inside is an ancient Church of the Virgin Mary . According to an inscription above the entrance, it was built by a pious man named Paul in honor of the Virgin Mary. Frescoes depicting Jesus and the apostles have been preserved inside. An underground stream of water can be heard nearby, adding to the sense of the place's uniqueness.
Hell's Pit (Cehennem Obruğu) is much deeper and more dramatic: it reaches a depth of approximately 128 meters, and descent is impossible due to the shape of the walls. This is why it is viewed from above—and the view is truly powerful.
Legends of Heaven and Hell
One of the region's most famous legends is associated with this place. According to official descriptions of Turkish museums, it was here, in Greek mythology, that Zeus defeated the fire-breathing, hundred-headed dragon Typhon and temporarily imprisoned him in a chasm of Hades before finally imprisoning him beneath Etna.
This story is the most famous and is confirmed by official museum sources in Turkey.
There's also a beautiful local legend that it was here that Achilles' mother, the sea goddess Thetis, dipped him in the waters of the sacred underground river Styx. This was done to make her son invulnerable, and she held him by the heel, which was left unprotected. This isn't just historical fact, but part of living folklore, which makes a trip here even more interesting.
Moreover, pilgrims and many visitors consider this place special and sacred. The Paradise Cave and the Church of Our Lady are associated with the belief that one can make a wish here and it will come true. This atmosphere is truly palpable: the place is simultaneously natural, ancient, and almost mystical. Historians also note that these cavities have been considered places of worship since ancient times.
Groundwater and why the nearby sea is so clear
Another interesting feature of the area is its groundwater. The official GoTürkiye portal explicitly states that in the Narlıkuyu area, groundwater meets the sea, keeping the water near the shore cool and very clear. Descriptions of the Paradise Crack also mention an underground stream that flows toward the coast. Therefore, the local story of a river emerging underground every few years, disappearing into the rock and flowing out to the sea, is connected to the actual hydrological features of this area.
Modern infrastructure: observation decks, glass floors and an elevator
Today, Cennet ve Cehennem is not only a natural monument but also a well-developed tourist destination. Modern observation decks have been installed here, and a spectacular glass-floored observation deck has been built over the Hell chasm . It offers one of the most stunning views in the entire area: a vast stone abyss beneath your feet.
An elevator has been built for the Paradise Gap . In practice, it's most often used to ascend after descending the steps: many tourists prefer to walk down to enjoy the views and the church, and then take the elevator back up. This makes the visit much more comfortable, especially in warm weather.
What's nearby?
A trip to the Caves of Heaven and Hell has long been a full-fledged vacation itinerary. Restaurants and cafes, perfect for breakfast or lunch after the hike. GoTürkiye especially recommends trying the local flatbreads, gözleme, and breakfasts. Thanks to this infrastructure, the trip can easily be transformed from just a sightseeing trip into a beautiful day on the coast.
Why you should come here
The Caves of Heaven and Hell are a place that perfectly captures the character of Mersin. They offer everything that makes this region so beloved: vibrant nature, the sea, ancient history, legends, and convenient tourist infrastructure. For tourists, this is one of the most compelling excursions in the province. For those considering Mersin as a place to live, this is further confirmation that the region is not only attractive for its beaches and seaside real estate, but also for its truly world-class attractions.
Cennet - Cehennem Magaraları is a must-see in Mersin. People come here for the giant karst sinkholes, the ancient church, the myths of Typhon and Achilles, the views from the glass terrace, and the special atmosphere of a place considered sacred by many. This isn't just a tour, but one of those experiences that truly makes Mersin unforgettable.
