Short answer
Start with Ngu Lam Peak (1.5–2.5 hours return) in the national park. For a real adventure, trek through to Viet Hai village with a guide and take a boat back.
01Trails at a glance
| Trail | Where | Time | Level |
|---|---|---|---|
| Kim Giao forest loop | National park HQ | 1–1.5 h | Easy |
| Ngu Lam Peak | National park HQ | 1.5–2.5 h | Moderate |
| Frog Lake (Ao Ech) | National park | Half day or more | Hard |
| Viet Hai through-trek | Park HQ to Viet Hai | 5–7 h | Hard |
| Cannon Fort | Cat Ba Town | 20–30 min up | Easy, steep road |
| Monkey Island viewpoint | Monkey Island | 20–30 min up | Short scramble |
02The Viet Hai trek
The classic long hike crosses the national park from the headquarters to the east side, passing Frog Lake (Ao Ech), a small forest lake, before descending into the Viet Hai valley. It involves rough, rocky trails with lots of up and down. From the village, cycle or ride an electric cart to Viet Hai pier and take a boat back to Ben Beo. Most people book it as a guided tour that includes the boat.
03Safety
- Hike with company and tell your hotel your plan
- Stay on marked trails; limestone terrain is confusing
- Avoid the long trails after heavy rain
- Carry a power bank and offline map
- Turn back if you are behind schedule; darkness falls fast
?Questions people ask
What is the best hike on Cat Ba?
Ngu Lam Peak for a short, rewarding climb; the Viet Hai trek for a full day in the jungle.
Do I need a guide?
Not for Ngu Lam Peak. For Frog Lake and Viet Hai a guide is strongly recommended.