The site houses the first geothermal power station in Indonesia, which began pilot operations in the early 20th century.
The steam pressure in the Kamojang field is significantly higher than in many other geothermal areas in Indonesia.
Local geothermal activity is driven by the heat from the underlying volcanic complex near Mount Gandapura.
The nature reserve area surrounding the craters serves as a natural habitat for the Javan leopard and various endemic bird species.
The site acts as a major research center for geothermal energy extraction technologies in Southeast Asia.
The steam emanating from the vents is primarily composed of water vapor, though it carries distinct sulfur scents.
The area is geologically characterized by hydrothermal alteration, where acidic volcanic gases transform surrounding rocks into clay minerals.
Kawah Kamojang is a geothermal field in West Java featuring active steam vents and bubbling mud pools. It contains one of Indonesia's oldest geothermal power plants, established during the Dutch colonial era in 1926. The site is part of the Kamojang Nature Reserve, protecting a high-altitude montane forest ecosystem. Visitors can walk directly alongside several steam-emitting craters and fumaroles. The area is situated at an elevation of approximately 1,730 meters above sea level, resulting in cool, misty mountain weather. Scientific monitoring confirms the field remains thermally active with high-pressure steam outputs. A network of wooden walkways and designated paths separates visitors from the hazardous, high-temperature geysers. The surrounding landscape is dominated by volcanic geography and dense vegetation typical of the Bandung Highlands.
The main boardwalk overlooking the largest, most active steam vent with the mountainous valley as a background.
Bring a light jacket or windbreaker as the high altitude and steam-cooled air can be chilly.
Stay strictly on the marked boardwalks to avoid thermal burns from the hidden, thin-crusted vents.
Wear non-slip, closed-toe shoes to navigate the potentially wet and muddy pathways safely.
Do not venture off the wooden platforms or attempt to touch the boiling mud pools.
Avoid touching the steam or the vents and dispose of all trash properly to protect the nature reserve ecosystem.
