Lake Coatepeque is of volcanic origin and is located 18 km south of the city of Santa Ana, El Salvador. It has an altitude of 745 meters and an area of 25.3 km². In addition, its depth of 115m. It has an island called Isla del Cerro or Teopan. The name “coatepeque” means “Hill of Snakes” in Nahuatl language.
The caldera was formed as a result of a large explosive eruption happened between 57.000 to 72.000 a. C. Then cinder cones and lava flows in the western part of the boiler as well as 6 lava domes (rhyodacite) were formed. The formation of the newest dome began around 8000. C.
The major accidents of Lake Coatepeque are the two small peninsulas called “Goggles” and the Isla del Cerro, where the Pipil Indians had a temple and a representative of the goddess Itzcueye monolith.
On its banks are some rock formations called “Goggles”. The north dome is 25 m wide and 25 m high, and southern dome is 150 m wide and 25 m high.
It has very pleasant waters, ideal for diving, sailing, canoeing, swimming and waterskiing site.