Lake Atitlán (Spanish: Lago de Atitlán) is a lake in the Guatemalan Highlands of the Sierra Madre mountain range. It is in the Sololá Department of northern Guatemala. "Atitlan" means "at the water" in Nahuatl.
This photo has been taken from the base camp of Acatenango volcano (3.400m). It was 5am climbing up to the crater when mother nature give us this present where you can observe in the front Antigua, in the back Guatemala city ,and volcano "Agua" on the right side of the picture.