Round the northern end of the Argostoli peninsula is the mill wheel and sink holes. There is nothing spectacular about the wheel itself, it’s a replica constructed after previous ones were destroyed by the earthquake in 1953.
The site however, is an area of particular interest to geologists: there was water that seemed to mysteriously disappear into sinkholes and go underground. Experiments were carried out using a special dye and it was discovered that the water emerged some 2 weeks later at the east coast village of Karavomylos, having first passed through the Melissani Lake.
Katavothres Club-Restaurant is onsite and you can follow them on Facebook for details of any upcoming events they may be planning.