Travel specialists share on-the-ground advice following Mount Etna's latest eruption, including flight delays, hiking advisories, and more.

Mount Etna is Europe’s largest active volcano and has erupted at least once per year for the last several years.

From downtown Catania to coastal viewpoints across Sicily, locals and visitors watched as the ash plume stretched more than four miles into the sky. A red aviation warning was briefly issued as volcanic tremors. They persisted overnight, building to what experts called “explosions of growing intensity.”