Hot springs/Karst Canyon Systems
Canyon & thermal cave · 37 °C
Grutas Tolantongo
Cardonal, Hidalgo
The turquoise water isn't dyed: it's dissolved calcium carbonate that has spent millennia building the canyon's hanging pools.

The water
- In the pool
- 36–38 °C
- As it leaves the ground
- No vent on record
your own body temperature
Bicarbonate. It crossed limestone and carries dissolved carbonate: hence the turquoise and travertine
Why it surfaces here
Hydrothermal karst system: travertine river and cave.
Complejo Karstico. Springs emerging at canyon floors, depositing turquoise travertine.
Photographs

22DiegoAlejandroPiña · CC BY-SA 4.0 · Wikimedia Commons

Carlos Adampol Galindo from DF, México · CC BY-SA 2.0 · Wikimedia Commons
Watch it before you go
GRUTAS DE TOLANTONGO Hidalgo El OASIS de México Qué hacer · Brenda Catalán
Recorrido por las Grutas de Tolantongo en Cardonal Hidalgo · Popurrí de Viajes
More about this place
Within 50 km
- La Gloria TolantongoCardonal · 37 °C0.7 km
- Balneario Te-PathéIxmiquilpan · 37 °C29 km
- Parque Acuático El TephéIxmiquilpan · 37 °C29 km
- Maguey Blanco Parque AcuáticoIxmiquilpan · 33 °C30 km
Straight-line distance. Driving time is calculated on the route.