Agua Azul, which means "blue water" in Spanish, is a series of waterfalls located in the state of Chiapas, Mexico. The waterfalls are formed by the Shumuljá River, which descends in a series of cascades and pools over limestone formations. The blue-green color of the water is caused by the high mineral content of the river.

Agua Azul is a popular tourist destination and is known for its natural beauty and swimming opportunities. The site has several walking trails that lead to different viewpoints of the waterfalls and pools. Visitors can also hire guides to take them on tours of the surrounding jungle and to visit nearby Mayan ruins.

The area around Agua Azul is home to several indigenous communities, including the Tzotzil and Tzeltal peoples. Many of these communities have lived in the area for centuries and continue to maintain their traditional way of life. Visitors can learn about their customs and traditions by visiting the nearby villages and markets.

It is important to note that during the rainy season (May to November), the water flow in the river can become strong and dangerous, so visitors are advised to exercise caution and follow safety guidelines.