Mount Odarto is an extinct volcano on the island of Kefali within Eretrebus. While there is clear evidence that the volcano erupted in ancient times, it has been dormant for thousands of years. Evidence of past eruptions includes a layer of ash in the soil of the main islands of Eretrebus and other islands in the Sea of Ersas. Today it is known as a pilgrimage site for certain sects of monks and ascetics, who meditate near the peak and gaze over the seas.