When the old Apoyo Volcano erupted, about 23,000 years ago, it left a huge 7 km-wide crater that gradually filled with water. This lake, located between Masaya and Granada, is surrounded by the old crater wall. This spectacular lagoon can be easily reached by car, and it is a great spot for swimming and relaxing. There is still an active fumarole at the western shore of the lagoon, so the volcano is not yet dormant. There are also myths that still surround this pristine lagoon.