Bali, a destination synonymous with serene rice paddies and vibrant culture, is grappling with a severe water crisis, largely exacerbated by its burgeoning tourism industry. The island's ancient 'subak' irrigation system, a UNESCO World Heritage site that has managed water distribution for over a millennium, is now struggling to meet the demands of a rapidly developing landscape. Farmers like I Putu Partayasa, who has tended his land for 52 years, are witnessing their fields dry up, a stark contrast to the consistent water supply of just fifteen years ago. Partayasa, who earns around £62 a month, fears that water is being diverted to support the island's many tourist facilities.
The traditional subak system, which dates back to the ninth century, treats water not as a commodity but as a sacred gift to be shared among the community. This intricate network of canals, weirs, and temples, where decisions on water flow are made collectively, is now facing unprecedented pressure. The Bali national land agency reports that the island has lost more than 6,500 hectares of rice fields in the past five years, representing a decline of over 9%. These paddies are crucial not only for sustenance and income but also as natural water infrastructure, slowing runoff, storing water, and recharging underground aquifers. When these fields are replaced by concrete, this vital function is permanently lost.
The impact is particularly evident in areas like Canggu, where rice paddies have rapidly transformed into urban sprawls of tattoo studios, co-working spaces, and restaurants catering to digital nomads and tourists. In 2024, Bali welcomed over 16 million tourists, a figure four times its permanent population. This massive influx has profound implications for the island's water resources; tourism is now estimated to consume over 65% of Bali's fresh water. This unsustainable demand has led to groundwater extraction pushing aquifers beyond their natural replenishment levels, particularly in the densely developed southern regions.
The consequences are dire for local communities. Research by IDEP's Bali water protection programme and local hydrologists indicates that coastal wells are becoming brackish as seawater intrudes inland, filling the void left by depleted freshwater aquifers. The IDEP Foundation, a Bali-based NGO, declared a water crisis in 2018, noting seawater intrusion in at least six of the island's nine districts. Residents in areas like Uluwatu, a popular clifftop tourist spot, often face daily uncertainty about their water supply, with public water networks only providing water for short periods.
The economic benefits of tourism are undeniable for Bali, yet the cost to its environment and traditional way of life is becoming increasingly apparent. The dwindling water supply poses a significant threat to the island's agricultural heritage and the future livelihoods of its farming communities, many of whom see their children turning away from farming due to these challenges. Balancing economic growth with environmental sustainability remains a critical challenge for the future of this popular Indonesian island.