Poros is separated from the mountainous Peloponnese by a narrow sea channel, and its protected setting makes the main settlement of Poros Town seem like a vibrant lakeside resort. The sight of its pastel-hued houses stacked up on the hillside around a clock tower is as romantic as it gets.
Poros is made up of two land masses connected by a tiny isthmus: Sferia, which is occupied mainly by the town of Poros; and the much larger and mainly forested Kalavria, which has the island’s beaches and seasonal hotels scattered along its southern shore. Poros still maintains a sense of remoteness in its sparsely populated, forested interior.
The Peloponnesian town of Galatas lies on the opposite shore, making Poros a useful base from which to explore the ancient sites of the Peloponnese.