Izalco is the youngest of El Salvador's volcanoes — born from a fumarole around 1770 and erupting almost continuously for nearly two centuries. Sailors offshore used its glow as a navigation aid, earning it the name 'Faro del Pacífico' (Lighthouse of the Pacific). It went dormant in 1966 and remains so.
The cone is geometrically near-perfect — black volcanic rock, sparse vegetation, classic stratovolcano profile. Most visitors view it from the Cerro Verde lookout in Cerro Verde National Park, where you can see Izalco, Santa Ana volcano, and the rim of an older caldera all in one panorama.
Climbing Izalco itself is technically possible (4–6 hours, very steep loose rock) but most travelers prefer the easy lookout option. The summit of Cerro Verde (~2,030 m) is reached by a short walking trail from the visitor centre — a 30-minute round trip at most.