Laguna de Alchichica, Saline lagoon in Tepeyahualco Municipality, Mexico.
Laguna de Alchichica is a circular body of water spanning roughly two kilometers across with depths reaching 75 meters. Its waters hold high concentrations of magnesium and minerals that give the lagoon its distinctive character and appearance.
The lagoon formed millions of years ago through volcanic activity in a region known as Llanos de San Juan. This geological origin shaped the landscape and character of the area that exists today.
Local stories speak of a silver-haired mermaid and mysterious underwater lights that capture people's imagination. These tales remain woven into how residents and visitors experience the place today.
Free access is available throughout the year, and nearby food options exist for visitors. Bring your own supplies and plan to take all waste with you when you leave.
The lagoon hosts animal species found nowhere else on Earth, including endangered axolotls and Alchichica silversides. Beneath the surface lie natural stromatolite formations, rare geological structures that few visitors realize are present.
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