Why thousands of pilgrims throw fruit and livestock into an active Indonesian volcano

Countries & Cities · Published 30 September 2026 Swipe more like this →

In short: Mount Bromo is more than a tourist destination; it is a sacred Hindu site where the Tenggerese people perform the Yadnya Kasada ritual. During this annual festival, villagers climb the volcano to cast offerings into the crater, a tradition rooted in a 15th-century legend that persists despite the mountain's volatile nature.

Located in East Java, Indonesia, Mount Bromo is a 2,329-meter somma volcano within the Tengger massif. Its name derives from Brahma, the Hindu god of creation, and the site remains a vital center for Javanese Hindus, who worship at a Ganesha idol near the crater. The volcano sits in the middle of the 'Sea of Sand,' a protected nature reserve, and is flanked by the Pura Luhur Poten temple, which is distinct for its construction using natural black volcanic stones rather than the red bricks common in Balinese architecture.

The mountain's activity is as significant as its cultural history. It is frequently monitored by the Indonesian Center for Volcanology and Disaster Mitigation, which issues alerts based on seismic tremors and deformation measurements. Eruptions can be severe, such as the 2004 event that claimed two lives, or the prolonged activity between late 2010 and early 2011. During that period, ash plumes reached 700 meters, forcing airport closures and disrupting regional travel as far away as Bali, 340 kilometers to the east.

Managing the risk of such an active peak requires constant vigilance. During periods of high activity, authorities establish exclusion zones—often ranging from one to three kilometers—to protect residents and tourists from falling debris and ash. Despite these dangers, the mountain remains a major draw for visitors who often mistake the neighboring Mount Batok for Bromo itself. Whether viewed from the village of Cemoro Lawang or the higher vantage point of Mount Penanjakan, the volcano remains a powerful intersection of geological instability and enduring religious devotion.

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