Therasia

This guide to Therasia, the quieter twin split from Santorini by a Bronze Age eruption some thirty-six hundred years ago, traces how a single volcanic island became two. It follows the Minoan-era towns swallowed when the mountain collapsed, and the pumice quarry cut into these cliffs where nineteenth-century workers hit something they weren't expecting while digging stone for the Suez Canal. Stand on the fallen rim and look across at Santorini's matching curve before you listen.