San Salvador Layover Tour: City Sightseeing and Joya de Cerén. Got a long layover at Monseñor Óscar Arnulfo Romero International Airport? Get out and explore San Salvador and nearby Joya de Cerén on this 4- to 6-hour tour that includes private, round-trip airport transfers. In San Salvador, visit top city attractions such as Salvador del Mundo Square and the Metropolitan Cathedral of the Holy Savior. Later, travel to the UNESCO World Heritage site of Joya de Cerén, where your guide gives you a glimpse into life in the 6th century. You can do this tour with private transport only, or upgrade to include a guide. Book now and Save 19%: San Salvador Layover Tour: City Sightseeing and Joya de Cerén.