Formation
Lake Atitlán was formed about 84,000 years ago by a massive volcanic eruption that created the caldera in which the lake now lies. The caldera is about 18 km (11 mi) long and 12 km (7 mi) wide and has a maximum depth of 340 m (1,115 ft). The lake is fed by several rivers and streams, and its outlet is the Samalá River, which flows into the Pacific Ocean.
Climate
The climate of Lake Atitlán is subtropical, with a mean annual temperature of 20 °C (68 °F). The rainy season lasts from May to October, and the dry season lasts from November to April. The average annual rainfall is 2,000 mm (79 in).
Flora and fauna
The lake is home to a variety of plant and animal life. The most common trees around the lake are pine, oak, and alder. The lake is also home to several species of fish, including trout, bass, and tilapia. The lake is also home to a variety of bird species, including ducks, geese, herons, and egrets.
Tourism
Lake Atitlán is a popular tourist destination. The town of Panajachel, located on the north shore of the lake, is the main tourist center. From Panajachel, tourists can take boat trips to the various villages around the lake, as well as to the volcanoes. The lake is also a popular spot for fishing, swimming, and kayaking.
Culture
The Lake Atitlán region is home to a variety of indigenous cultures, including the Maya and the Kaqchikel. The indigenous people of the region have a rich culture and traditions that are still practiced today. The most important cultural event of the year is the Fiesta de San Pedro, which is held in June in the town of San Pedro La Laguna.