Phong Nha-Ke Bang National Park

Overview

Phong Nha-Ke Bang in Quang Binh Province harbours over 300 caves including Son Doong — the world's largest cave, first explored in 2009.

What to Do

• Son Doong Cave expedition — 6-day adventure with Oxalis (~$3,000; book months ahead)
• Hang En Cave — world's third-largest, accessible on a 2-day jungle trek
• Phong Nha Cave — boat into this illuminated river cave
• Paradise Cave — 31 km system with a dazzling 1 km boardwalk section
• Dark Cave — zip-line in, swim through mud, explore in darkness

Best Time to Visit

February to August.

Getting There

Fly to Dong Hoi then bus or taxi 50 km to Phong Nha village.