Piraeus is situated in the southwest part of the central plain of Attica. Piraeus is bounded by Mount Egaleo to the northwest, the Saronic Gulf to the south and west, and is connected with the rest of the Athens urban area to the east and northeast. The city proper consists of a rocky peninsula, originally an island, featuring three natural harbours. In addition to the central one, called Kantharos in ancient times, the smaller harbours to the east are still in use, Zea also known as Pasalimani, and Munichia, the smallest of the three and widely known as Mikrolimano.
Hydra (Ύδρα) is one of the Saronic Islands of Greece, located in the Aegean Sea between the Saronic Gulf and the Argolic Gulf. It is separated from the Peloponnese by narrow strip of water. In ancient times, the island was known as Hydrea (Υδρέα, derived from the Greek word for “water”), which was a reference to the springs on the island.
Garbage trucks are the only motor vehicles on the island, as cars or motorcycles are not allowed by law. Donkeys, bicycles, and water taxis provide public transportation. The inhabited area, however, is so compact that most people walk everywhere.