From Páli, it's an hour's climb to the hilltop village of Emporió, with a medieval castle (fine views), and a further hour's walk along the rim of a volcanic crater (alt. 410-570m/1,345-1,870ft; diameter 2,700-3,800m/2,950-4,150) to Nikiá.
Emporio lies in a lush area with mineral springs and planted with olive trees, fig trees, fruit trees and
grapevines.
You have to go almost to the middle of Nisyros to the Lakki plateau to see the crater of the extinct volcano, Polybates. The reek of sulfur fills the surrounding air.
At Emporio is a monastery.