Archive · 15 Aug 2026
Shanay-Timpishka: The Amazonian River That Boils Without a Volcano
Deep in the Amazon jungle in Peru, there is a river so hot that it can cook animals alive.
It is called Shanay-Timpishka, and it reaches temperatures over 99 degrees Celsius, which is almost boiling.
The strange part is that there is no volcano anywhere nearby to explain the heat.
Scientists like Andrés Ruzo figured out that rainwater seeps deep underground, where the Earth's natural warmth heats it up.
Then the hot water rushes back up through cracks in the rocks, called faults, and fills the river.
About 6.3 kilometres of the river's 9-kilometre course is dangerously hot.
It can be as wide as 30 metres and as deep as six metres, and animals that fall into it get badly burned and die almost instantly.
The local Asháninka people have always considered this river sacred and use it for healing ceremonies.
Visitors need to take a flight, a drive, a boat ride and a jungle hike to reach it, so hiring a guide is recommended.
The Shanay-Timpishka river in the Peruvian Amazon reaches near-boiling temperatures, peaking at 99.1 degrees Celsius.
Geoscientist Andrés Ruzo says the river is a non-volcanic geothermal system, with the nearest active volcanic centre more than 700 kilometres away.
Rainwater seeps deep underground, is heated by the Earth's natural geothermal warmth, and returns to the surface through fault-fed hot springs.
The actively boiling stretch spans about 6.3 kilometres of the roughly 9-kilometre river, reaching up to 30 metres wide and six metres deep, with an average temperature around 86 degrees Celsius.
Located in the Mayantuyacu sanctuary in Peru's Huánuco Region, the river is sacred to the local Asháninka people, who use the area for healing ceremonies.
- Who
- Geoscientist Andrés Ruzo, who has studied the river, and the local Asháninka people, who revere it as sacred.
- What
- The Shanay-Timpishka river in the Peruvian Amazon boils without any nearby volcano, reaching a peak temperature of 99.1 degrees Celsius.
- When
- The article does not specify a date.
- Where
- Mayantuyacu sanctuary, Huánuco Region, Peru.
- Why
- Fault-fed hot springs: rainwater heated deep underground by the Earth's natural geothermal warmth is forced back to the surface through fault lines.
- River name
- Shanay-Timpishka
- Location
- Mayantuyacu sanctuary, Huánuco Region, Peru
- Peak temperature
- 99.1 degrees Celsius
- Average temperature
- Around 86 degrees Celsius
- Boiling stretch
- About 6.3 km of a roughly 9 km river system
- Dimensions
- Up to 30 metres wide and six metres deep
- Nearest active volcano
- More than 700 kilometres away
- Revered by
- The Asháninka people for healing ceremonies