Lake Petén Itzá (
Lago Petén Itzá, ) is a
lake in the northern
Petén Department in
Guatemala. It is the second largest lake in Guatemala, after the
Izabal Lake. It is located around . It has an area of 99 km² some 32 km. long and 5 km wide. Its maximum depth is 160 m. The lake area presents high levels of migration, due to the existence of natural resources such as wood, chewing gum, oil, and agricultural and pasture activities. Because of its archaeological richness, around 150,000 tourists pass through this region yearly. The city of
Flores, the capital of El
Petén, lies on an island near its southern shore.