The Vourina Spring is situated roughly half an hour away from Kos Town. To enter it you have to go down a long corridor of around thirty meters at the end of which you will get to a chamber with a vaulted roof probably dating back to Hellenistic times. A square opening at the top provides adequate air and light. The water from the spring is channeled towards Kos Town providing most of the town's water. A small chamber can be found at the beginning of the corridor that was probably used by guardians of the spring.
