HYDRA ISLAND, GREECE - TOP PLACES TO VISIT AND ACTIVITIES Hydra, also known as Idra or Ydra, is located in the Saronic Gulf, at a short distance from Athens. Numerous celebrities have been attracted by the beauty of the island over the years, and today it is considered one of the most bohemian and elegant locations in Greece. There are no cars, scooters or bicycles on the island, so the only way to get around, besides walking, is by boat. Although it is not a large island, it