"7 Volcanoes"
The Volcanic Seven Summits are the highest volcanoes on each of the seven continents, just as the Seven Summits are the highest peaks (irrespective of geological origin) on each of the seven continents.
The Volcanic Seven Summits are the highest volcanoes on each of the seven continents, just as the Seven Summits are the highest peaks (irrespective of geological origin) on each of the seven continents.