Green River (Biri River)

Biri

A pristine river system near Vanimo known for its exceptional water clarity and lush rainforest surroundings, accessible by boat from the town. The river offers excellent opportunities for swimming, bird watching, and experiencing untouched tropical wilderness.

Things to do

• Crystal Water Swimming — Take a refreshing dip in the exceptionally clear waters of the Biri River, where visibility often extends several meters below the surface.
• Bird Watching Expeditions — Spot rare and endemic bird species such as the Superb Bird of Paradise and various kingfishers along the river's lush canopy.
• Rainforest Trekking — Explore the pristine tropical forest trails surrounding the river to encounter diverse wildlife including cassowaries, tree kangaroos, and tropical insects.
• Boat Excursions from Vanimo — Arrange guided boat trips departing from Vanimo town to navigate upriver and discover hidden waterfalls and secluded swimming holes.
• Sunrise Observation — Wake early to witness mist rising from the river at dawn while listening to the cacophony of waking rainforest birds.
• Photography Expeditions — Capture the dramatic interplay of light through the canopy, pristine water reflections, and abundant wildlife in their natural habitat.

Food to try

• Sago with Coconut Milk — A staple starch made from sago palm, prepared with fresh coconut milk and often served with local fish or bush meat.
• Freshwater Fish Grilled — Locally caught river fish seasoned simply with lime, salt, and wrapped in banana leaves before grilling over open flames.
• Taro and Sweet Potato — Root vegetables boiled or roasted and served as a carbohydrate base alongside protein dishes.
• Coconut Crab — A prized local delicacy from the surrounding region, prepared grilled or in coconut-based curries by skilled local cooks.
• Betel Nut (Areca Nut) — A mild stimulant traditionally chewed with lime and wrapped in betel leaf as a social custom and refreshment.

Local customs & good to know

• Respect River Spirits — Local communities hold the Biri River sacred; ask permission before swimming or taking photographs, and avoid loud behavior that disrespects the natural space.
• Hire Local Guides — Engage experienced local guides from Vanimo who understand river conditions, wildlife behavior, and cultural protocols essential for safe and respectful travel.
• Learn Basic Tok Pisin — While English is spoken in towns, learning a few phrases in Tok Pisin (the lingua franca) shows respect and facilitates meaningful interactions with river communities.
• Dress Modestly — Wear appropriate swimwear and cover shoulders and knees outside swimming areas, as local communities maintain conservative dress standards.

Nearby

• Vanimo (West Sepik) — 23 km
• Vanimo — 23 km
• Nuku — 25 km
• Tami Islands — 37 km