Located in Murillo, Tolima, within Los Nevados National Natural Park, the Sifon River has become one of the country’s most surprising natural destinations. Considered the only hot-water river in Colombia, this stream stands out not only for its unusual temperature but also for the striking turquoise color of its waters, which contrasts with the cold paramo landscape surrounding it.
At nearly 3,000 meters above sea level, this natural paradise offers an experience that blends relaxation, adventure, and direct contact with high-mountain ecosystems. Its volcanic origin, linked to the activity of Nevado del Ruiz, explains why its waters emerge warm in an environment where low temperatures typically prevail.
Turquoise hot waters: What makes the Sifon River unique
The Sifon River owes its temperature to underground volcanic activity. Water heats up as it comes into contact with rocks from Nevado del Ruiz, creating warm currents that range between 25°C and 40°C, depending on the section of the river and weather conditions. This variation allows visitors to find both milder and hotter spots, ideal for natural bathing.
Its turquoise color — one of its main attractions — comes from the presence of minerals such as sulfur, iron, and calcium. These elements not only influence its appearance but are also known for their relaxing properties and skin benefits. Altogether, the river functions as a constantly flowing natural thermal spa.
Unlike many static hot springs, the Sifon maintains a continuous current, which constantly refreshes the water and provides a sense of freshness despite its warmth. This balance between temperature and flow makes it a rare and remarkable destination within Colombia.
@dannportraits A 2 horas de la vía que de Murillo conduce a Manizales, podrán encontrar este maravilloso lugar. 📍: Termales el Sifón Dentro del perímetro del Parque Nacional Natural Los Nevados Tour: @Murillo Travel 🇨🇴🍃 #murillotolima #lugaresparavisitar #nevadodelruiz #termales ♬ green to blue (Sped Up) – Aurenth
A small natural treasure compared to global giants
Although the Sifon River is unique in Colombia, similar phenomena exist elsewhere in the world. One of the most famous is the Shanay-Timpishka in the Peruvian Amazon. This river is known for reaching much higher temperatures — sometimes close to boiling — and is significantly larger and more powerful than its Colombian counterpart.
The key difference lies in scale and intensity. While the Shanay-Timpishka can be dangerous due to its extreme heat, the Sifon River offers a safe and accessible experience for visitors. Colombia’s version is smaller and more moderate, but no less fascinating. Its size allows for closer interaction with the environment, making it ideal for ecotourism and wellness travel.
This comparison highlights the Sifon’s value as a geological rarity within Colombia — one that is better suited for relaxation and nature experiences than extreme exploration.
How to get there and what to do
Reaching the Sifon River is part of the adventure. From Bogota, the journey to Murillo takes about five hours by road. From there, visitors must continue for approximately two more hours, either via rural transport or guided hikes through paramo (Andean moors) trails.
Despite the effort required, the destination is rewarding. The main activity is bathing in the warm river waters, an experience that combines thermal relaxation with breathtaking natural scenery. Hiking is also popular, with nearby waterfalls, lagoons, and diverse Andean flora and fauna to explore.
For those seeking a deeper connection with nature, camping is an option in nearby areas. Spending the night in this remote landscape offers clear skies, complete silence, and an immersive experience in one of Colombia’s most fragile ecosystems.
Recommendations for a responsible visit
Due to its location in a high-altitude paramo, visiting the Sifon River requires preparation. Warm clothing is essential, even if planning to enter the water. It is also recommended to limit bathing sessions to 15–20 minutes to avoid sudden changes in body temperature.
Access can be challenging, so hiring local guides or specialized agencies is advisable for safety and orientation. Additionally, as this is a protected natural area, visitors should follow environmental guidelines, avoiding waste and minimizing their impact on the ecosystem.
The Sifon River stands as one of Colombia’s most unique natural wonders — a place where volcanic energy, mineral-rich waters, and Andean landscapes come together to create an unforgettable travel experience.