sentences:  The three principal islands were densely inhabited during the Postclassic with a great deal of construction taking place.The site was abandoned about the same time as Mayapan, around 1450, when the Kowoj Maya, moved their capital west to Zacpetén Island in the Salpetén lake, near the Peten Itza lake.Spanish missionaries Fuensalida and Orbita are said to have passed by Lake Yaxha in 1618, at which time they reported that there appeared to be no inhabitants, indicating that the site had already been abandoned by this time.