Kolumbo volcano, located 7Km, NE of Santorini, is part of a chain of more than 26 submerged volcanoes that form the Kolumbo volcanic field.

There are two volcanoes in the area: Nea Kameni, an islet within Santorini’s caldera; and Kolumbo, a submarine volcano about 8 kilometers (5 miles) northeast of Santorini.

There are two volcanoes in the area: Nea Kameni, an islet within Santorini’s caldera; and Kolumbo, a submarine volcano about 8 kilometers (5 miles) northeast of Santorini.