El Boqueron National Park, National park at San Salvador volcano, El Salvador

El Boquerón National Park sits atop the San Salvador volcano at 1,800 metres in La Libertad. Its main feature is the Boquerón crater, 1.5 kilometres across and 558 metres deep, with a smaller crater called Boqueroncito inside it. The crater rim is a low earthen ridge covered in short vegetation, with scattered trees and shrubs.

El Boquerón sits atop the San Salvador volcano at about 1,800 metres. The main crater, roughly 1.5 km across and 558 m deep, is thought to have formed after a strong eruption in 1917 that damaged parts of San Salvador, Nejapa and Quezaltepeque. Lava remnants from that eruption can be seen at El Playón, at kilometre 34 of the road from San Juan Opico to Quezaltepeque. In 2008 the park was dedicated to former president Antonio Saca.

The name El Boquerón means "the big mouth", referring to the wide crater, and the inner cone is called Boqueroncito. In 2008 the park was dedicated to former president Antonio Saca. Vendors in the surrounding communities sell food and crafts to the many visitors from the nearby San Salvador metropolitan area.

The grounds are hilly and best explored on foot using marked trails, so sturdy footwear is recommended. The higher elevation means cooler weather than in the city, so bring layers or a light jacket.

The crater's rim is split between four districts: Nejapa, Quezaltepeque, San Juan Opico and Santa Tecla. At El Playón, kilometre 34 on the road from San Juan Opico to Quezaltepeque, remains of the lava thrown out in 1917 are still visible.