The Cave of Dzhebel is a prehistoric site about 3 kilometres north of Turkmenbashi near the eastern shore of the Krasnovodsk Gulf. Excavated in the mid-20th century by Soviet archaeologists, the cave revealed a sequence of human occupation stretching from the Mesolithic through the Bronze Age — roughly 10,000 to 4,000 years of intermittent habitation. Finds included stone tools, animal bones from hunted species now extinct in the region, and human skeletal remains.
The cave is not set up for tourism in any formal sense, but it is reachable from the city and worth visiting if you have an interest in Central Asian prehistory. The surrounding landscape — rocky, arid, overlooking the Caspian — is striking in itself. A local guide or driver who knows the area is recommended for finding it.