Mountains of Java Buried in Trash

The mountains of Java, long seen as an escape from the chaos of city life, are now shouldering a different kind of burden—not rocks or landslides, but trash. Plastic food wrappers, bottled water, wet tissues, and other domestic waste brought by hikers are piling up at alarming rates. Each year, the total waste left along trails and at the summits of Java’s mountains is estimated to exceed 30 tonnes, the equivalent weight of 300 motorcycles.

Trash-Filled Peaks

Data compiled from various sources and environmental groups reveal the scale of the problem:

Mount Gede Pangrango (West Java)
According to the Gede Pangrango National Park Authority (BBTNGP), during the 2019 National Waste Awareness Day, volunteers hauled away 4 tonnes of trash from the hiking trails. Current estimates show that more than 5 tonnes are collected annually from the Cibodas, Gunung Putri, and Selabintana routes.
Mount Ciremai (West Java)
Reports from environmental communities and the Natural Resources Conservation Agency (BKSDA) indicate that roughly 3.5 tonnes of trash are gathered each year from the Linggarjati, Apuy, and Palutungan trails—mostly plastic bottles and instant noodle packaging.
Mount Merbabu (Central Java)
Annual clean-up activities conducted by volunteers have recorded between 4 and 5 tonnes of waste each year, primarily from the Selo and Thekelan trails.
Mount Prau (Dieng, Central Java)
A favourite among beginner hikers, Mount Prau sees about 3 tonnes of trash collected annually during large-scale volunteer clean-ups.
Mount Lawu (Central Java–East Java)
With its deep spiritual significance, Mount Lawu is not spared from waste issues. Various clean-up efforts estimate more than 3 tonnes of rubbish per year, much of it plastic and cigarette butts.
Mount Semeru (East Java)
As the highest peak in Java, Mount Semeru carries the heaviest load—between 8 and 10 tonnes of waste annually, according to the Bromo Tengger Semeru National Park Authority (BB-TNBTS) and hiker communities. Most of it is concentrated around Ranu Kumbolo, Kalimati, and the summit trail to Mahameru.

Combined, these six mountains alone produce an estimated 27–30 tonnes of trash per year—and that’s not counting other popular peaks like Sumbing, Sindoro, Arjuno, and Penanggungan.

The Weight of 300 Motorcycles

To put this into perspective: one underbone motorcycle, such as the Honda Supra X, weighs about 100 kg. That means 30 tonnes of mountain trash equals 300 motorcycles—a staggering visual of the burden placed on the environment from just one island.

The type of waste is just as concerning. Volunteers estimate that 70–80% of it is plastic: instant noodle wrappers, snack packaging, bottled water, and plastic bags. The rest consists of wet tissues, metal, glass, and broken hiking equipment.

A Cultural Shift Is Needed

Groups like Trashbag Community, Mountnesia, and countless individual hikers have been on the front lines of the fight against mountain waste for years. Yet without collective behaviour change and stricter regulations, Java’s mountains will continue to bear the weight of human consumption.

Hiking should never be just about conquering a peak—it should be about protecting the earth that hosts it. If we fail to act, our dream of enjoying the wilderness could turn into a nightmare, with our mountains transformed into giant landfills. (Wage Erlangga)