Lake Bolsena

Lake Bolsena is a freshwater lake in northern Lazio, Italy, occupying a volcanic caldera. It is commonly described as the largest volcanic lake in Europe by surface area and features two small islands and several lakeside towns.

Boating, swimming and lakeside walks are the main visitor activities, with short boat services to the islands and beaches around the shoreline. The larger island, Isola Bisentina, has historical structures and gardens; the smaller Isola Martana contains archaeological remains and is largely undeveloped.

The lake formed from volcanic activity and has supported settlements since ancient times; nearby hill towns such as Bolsena and Montefiascone offer viewpoints down to the water and historic churches and fortifications.

Lake Bolsena is in the Viterbo area of Lazio, roughly north of Rome, and is accessible by road from regional towns.

• Volcanic caldera: Lake Bolsena occupies a volcanic caldera and is often described as the largest volcanic lake in Europe by surface area.

What to See #

• Isola Bisentina: Isola Bisentina is the larger of the two islands in the lake and contains historical buildings and gardens reached by short boat trips from the shore.
• Isola Martana: Isola Martana is the smaller island, largely uninhabited and noted for archaeological remains and ruins visible from the lake's north shore.
• Shore towns and viewpoints: The town of Bolsena on the northern shore provides lake access, beaches and boat services; Montefiascone and other hill towns overlook the lake from higher ground.