Can You Drink Tap Water in Papua New Guinea?

Tap water in Papua New Guinea is not safe to drink anywhere in the country. Papua New Guinea has some of the least developed water infrastructure in the Pacific region, with limited treatment capacity even in Port Moresby, the capital. The country's extraordinary geographic diversity — spanning vast rainforests, highlands, and over 600 islands — has made centralised water infrastructure extremely challenging to develop.

In Port Moresby, the capital, the water supply is treated by Eda Ranu but distribution infrastructure is aging and water quality at the tap is unreliable. Most expatriates, NGO workers, and international visitors rely entirely on bottled water or filtered water from dispensers. Hotels catering to international visitors provide bottled water as standard. The city's security situation also means visitors typically move within a limited range of vetted accommodation and venues.

Lae, the country's second city and industrial hub, and other urban centres have similarly limited water infrastructure. In highland areas including the Wahgi Valley and Mount Hagen — accessible to adventure visitors — water comes from mountain springs and streams that must be treated before consumption. The highlands have some of the most dramatic scenery in the Pacific but essentially no visitor water infrastructure outside of the few established lodges.

For visitors exploring Papua New Guinea's extraordinary natural assets — Kokoda Track trekkers, dive visitors to Milne Bay and Kimbe Bay, and birdwatchers in the rainforest — carrying a quality filter is essential. Natural water sources throughout PNG must be treated regardless of how pristine they appear.

Bottled water is available in Port Moresby and Lae but expensive and less reliable outside major centres. A quality filter rated for bacteria, protozoa, and viruses is strongly recommended for any travel beyond established hotels.