Trizonia island is located in the north coasts of Corinthian gulf opposite the villages Glyfada and Chania of Phocis prefecture.The nearby islets Prasoudi, Planemi and Agios Ioannis comprise a small group of islands.
The origin of the name of the island is unknown. According to a view, the name derives from the small insect cricket (in Greek trizoni). In accordance with another view the name derives from corruption of name trionisia that means three islands (because the small group of islands comprises three islands). The island belongs to Dorida municipality in Phocis regional unit.
In island there is a small settlement, built in the north part. The nearly circular bay in front of the settlement is used as small port for yachts. The island is visited by a ship from the opposite coast of Chania. In island there aren’t motor vehicles. Along the coast, there are many traditional taverns, restaurants and cafes, where you can enjoy the magnificent landscape that unfolds before your eyes.
Trizonia has three beaches. The biggest from them is named Pounta and is located in the south of the island.