Located 1,562 meters above sea level, Lake Atitlán is 18 km long and covers an area of 130 km2. Its depth varies, and in many points it is unknown; however, it is estimated to be over 350m deep. You will find the most important ecological habitats of the region on the lakeshore in San Juan la Laguna, where there are a large variety of reeds, birds and fish.
This natural reserve contains 93 acres of subtropical forest and is a sacred mountain, due to its ceremonial site known as the Mayan Face or the Rostro Maya in Spanish and Rupalaj K'istalin in Tz’utujil. The Rostro Maya is shaped like a face looking to the sky, and it is visited for its diverse flora and fauna with a magnificent view of the lake.
The Association of Tourist Guides, Rupalaj K'istalin, is named after this sacred place. The tour guides offer a tour of the mountain or you can just pay the 30 Quetzales entry into the reserve and follow the well-marked trail. The ascent of the mountain is a 6 km trek, and takes about 3 hours. On the trail, visitors can admire one of the most beautiful and characteristic landscapes of Lake Atitlán, you can dive into a world of legends and stories that tell the life of the Tz'utujil Mayans, and you can understand the importance of nature in the life of the village of San Juan la Laguna.