Palea Kameni, also known as Palia Kameni, is a volcanic island within the Santorini Caldera. The island was formed by a series of volcanic eruptions that formed large deposits of pumice and dacite. The island’s name translates to „Old Burnt Island“.

Nea Kameni is a small uninhabited Greek island of volcanic origin located in the Aegean Sea, within the flooded Santorini caldera. Nea Kameni and the neighbouring small island Palea Kameni (the new and old burnt islands) have formed over the past two millennia through repeated eruptions of dacite lava and ash.