Phong Nha – Kẻ Bàng

Dark Cave is Phong Nha's most adventurous experience - a zip line over the Son River, kayaking into a pitch-black cave, swimming through underground passages, and a mineral mud bath inside the cave chamber, all packaged into one of Vietnam's best adventure activities.

The Duck Stop is Phong Nha's best-known traveller bar - a riverside terrace on the Son River in Sơn Trạch village where solo travellers, guides, and caving operators converge in the evening, with cold beer, local food, sunset views, and the best information on what's actually worth doing in the national park.

Eight Ladies Cave is one of Vietnam's most sacred war memorials - a limestone cave in Phong Nha-Kẻ Bàng where eight young female volunteers were killed by American bombing in 1972 while sheltering inside, reached by a jungle trek and visited as a place of pilgrimage by Vietnamese travellers.

Hang En is the third largest natural cave in the world, hidden deep inside Phong Nha-Kẻ Bàng National Park in Quảng Bình. Reaching it requires an 11km trek through jungle, river crossings, and the remote Bru-Vân Kiều village of Bản Đoòng - with a night camping on a white sandbar inside the cave itself, under a ceiling 145 metres high filled with thousands of nesting swallows.

Mooc Spring is Phong Nha's most beautiful swimming spot - a natural spring emerging from the karst limestone in a jungle clearing, forming a series of turquoise pools and a gentle waterfall, 7km from Sơn Trạch and one of the most scenic outdoor pools in central Vietnam.

Paradise Cave is the longest dry cave in Asia at 31km - a cathedral of white and gold stalactites up to 40 metres high, discovered only in 2005 and opened to visitors in 2010, with a 1km boardwalk through chambers so vast they dwarf everything inside them.

Phong Nha Botanic Garden is a 2,000-hectare protected forest reserve on the edge of Phong Nha-Kẻ Bàng National Park - a network of jungle trails, a canopy walkway, and some of the most accessible wildlife habitat in central Vietnam, 7km from Sơn Trạch village.

Phong Nha Cave is the oldest and most historically significant cave in the Phong Nha-Kẻ Bàng UNESCO World Heritage Site - a 7.7km limestone grotto with an underground river, navigated by wooden boat through cathedral chambers of ancient stalactites and glowing formations.

Son Doong is the largest cave in the world - big enough to contain a 40-story skyscraper, with its own weather system, jungle, and river inside. Access is by 4-day expedition only, with a strict annual quota of 1,000 visitors, making it one of the most exclusive natural experiences on earth.