I met Anna's husband, Nicos at a kiosk and we drove back to the villa. He was kind to show us all the great spots around the island. We followed his advice for food, sailboat and beaches. He made us feel very comfortable and the couple were easily accessible by phone. (except your wifi hardly worked, and the airbnb app is useless). We loved the sailboat ride that you recommended.
He also supplied us with 6 bottles of water, which we graciously took.
It was really nice to be away from the hustle and bustle but hard to find in the dark.