Giola or the Eye of Zeus is a natural lake filled with sea water that flows there from the nearby coast when the tide is high. It is sought-after not only for its unique beauty but also popular among fishermen. It is also very nice to bathe in, only you need to be wary of the rather sharo rocks.

The lake is hidden in the rocks close to the village of Astris. The way to it is not well signposted and also it is rather difficult to pass, yet it can be made even in a common vehicle if you are careful.