Curious Facts About Lake Atitlán

Lake Atitlán is one of the most extraordinary bodies of water on the planet. Beyond its superficial beauty, it hides geological records, Mayan secrets, and unique natural phenomena. Here are the 10 most surprising facts about Central America's deepest lake.

What makes Lake Atitlán unique?

10 curious facts about Lake Atitlán

1. Central America's deepest lake
   With a maximum depth of 340 meters —and an average depth of 188 meters— it surpasses any other lake in the region. Its bottom has not been fully mapped, and some geologists estimate there are even deeper unexplored areas.
2. Born from a supervolcano 84,000 years ago
   The caldera now occupied by the lake was created by the eruption of the Los Chocoyos supervolcano approximately 84,000 years ago. The explosion was so powerful that its volcanic ash was found in marine deposits in the Pacific and Atlantic Oceans, evidence that it affected the global climate for months.
3. It has a submerged Mayan city
   The archaeological site of Samabaj, discovered in 1996 by Guatemalan diver Roberto Samayoa, is located 20 meters deep on the southern shore of the lake. Inhabited between 1,000 BC and 250 AD, it was flooded when the lake level suddenly rose. Incense burners, stelae, and intact ceremonial structures have been recovered. The site is a National Cultural Heritage.
4. The Xocomil arrives punctually every afternoon
   The Xocomil —a wind whose Tz'utujil name means "the wind that carries away sin"— appears almost every day between 1:00 PM and 3:00 PM with speeds of 40 to 80 km/h. Boats between towns always leave in the morning for this reason.
5. The Atitlán Grebe: the bird the lake no longer has
   The Podilymbus gigas, known as the Atitlán Grebe, was an endemic bird species of Lake Atitlán declared extinct in 1989. Its disappearance was caused by the introduction of the black bass fish in the 1960s (which devoured its young and the fish it fed on) and over-predation. It is one of the emblems of lost biodiversity in Guatemala.
6. Its shores speak three Mayan languages
   The 13 municipalities around the lake are inhabited by three distinct Mayan peoples: Kaqchikel (north and east shores), Tz'utujil (south shore, including Santiago Atitlán), and K'iche' (some inland communities). This linguistic diversity in such a small geographical area is unique in the world.
7. Three active volcanoes frame it
   Volcano Atitlán (3,537 masl), Tolimán (3,158 masl), and San Pedro (3,020 masl) surround the lake. Volcano Atitlán is still active: in 2022, it recorded a minor ash eruption. The altitude difference between the lake's surface (1,562 masl) and the crater of Volcano Atitlán is almost 2,000 meters, creating one of Central America's most dramatic landscapes.
8. Maximón: the saint who smokes and drinks aguardiente
   In Santiago Atitlán lives the Rilaj Mam, known as Maximón, a syncretic deity to whom his Tz'utujil devotees offer cigars, aguardiente, copal, and money. His house changes every year among the town's cofradías. It is one of the most original and unique religious traditions in all of America.
9. You can dive up to 30 meters deep
   The constant water temperature (18–20°C), visibility of up to 10 meters, and absence of currents make Lake Atitlán a world-class freshwater diving destination. Santa Cruz La Laguna is home to ATI Divers, one of the most renowned diving centers on the continent, with dives to 30+ meters where unique volcanic structures are explored.
10. Aldous Huxley called it the most beautiful in the world
    In 1934, the author of Brave New World visited the lake and wrote in his travel book Beyond the Mexique Bay that it was "the most beautiful lake in the world, if we except the Titicaca." The quote became Guatemala's most enduring tourism marketing argument and continues to be reproduced in travel guides worldwide.

Technical facts about Lake Atitlán

• Altitude: 1,562 masl
• Maximum depth: 340 meters
• Surface area: 130 km²
• Perimeter: 117 km
• Type: volcanic crater lake (caldera)
• Origin: ~84,000 years ago (late Pleistocene)
• Lakeside municipalities: 13
• Department: Sololá, Guatemala

How many towns surround Lake Atitlán?

The lake is surrounded by 13 municipalities, each with a unique cultural identity. The most visited are Panajachel, San Juan La Laguna, San Pedro La Laguna, Santiago Atitlán, Santa Cruz La Laguna, Santa Catarina Palopó and San Marcos La Laguna.

Related Pages

• Lake Atitlán
• Altitude of Lake Atitlán
• History of Lake Atitlán
• Information about Lake Atitlán
• Santiago Atitlán
• Santa Cruz La Laguna