Near Narlıkuyu on Turkey’s Mediterranean coast, two dramatic sinkholes open in the limestone landscape above the sea. Their Turkish names, Cennet and Cehennem, mean Heaven and Hell. The Ministry of Culture explains that underground water dissolved limestone over time; after the water drained away, the weakened roof collapsed. The result is a pair of steep natural depressions whose scale and contrasting access have encouraged both practical curiosity and mythic storytelling.
The official museum profile places the site about 25 kilometres from central Silifke, two kilometres northwest of the ancient harbor of Narlıkuyu and five kilometres west of Korykos, now known as Kızkalesi. This makes the sinkholes a possible stop on a wider route through Mersin’s coastal heritage, but travelers should check driving directions and local transport rather than assume a convenient public connection.