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Trung Trang Cave

Trung Trang Cave is the largest accessible cave on Cát Bà Island - a 300-metre limestone grotto inside the national park with stalactite formations, a bat colony, and a jungle approach through primary forest.

🪨 Largest Cave on Cát Bà📸 Photography🦇 Bat Colony🥾 National Park
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Overview

Best Time to Visit
📅 Apr – Oct (dry season, trail accessible; cave open year-round)
Entry Fee
🎟️ ~40,000 VND (national park entry applies)
Opening Hours
🕐 7:00 AM – 4:00 PM
Address
📌 Cát Bà National Park, Hải Phòng

Things to Know

👥Crowds
Can become crowded with tour groups moving in single file; less crowded when visiting independently by taxi
🥾Difficulty
Short 15-30 minute walk with 100-140 stairs to entrance. Multiple low passages require crouching or squatting. Not suitable for very tall people (over 5'11"), very overweight visitors, or claustrophobic individuals
🚶Accessibility
Concrete flooring and metal stairs throughout make it accessible for most. Not recommended for those with significant mobility issues due to stairs and narrow sections
🌤️Seasonal
Rain gear and waterproof shoes recommended during rainy season
ABOUT THIS PLACE

What Makes Trung Trang Cave Special

Trung Trang Cave is the largest limestone cave on Cát Bà Island, located inside the national park 17km from Cát Bà town. The cave extends approximately 300 metres into the karst hillside with two main chambers and a connecting passage, housing stalactite and stalagmite formations and a resident bat colony of several thousand individuals. The cave was known to local people for generations and was used as a shelter during the Vietnam War - the same protective function that the karst geology provided to Hospital Cave on the other side of the island. The approach through the national park forest adds to the experience - the jungle path from the road is 15–20 minutes through primary forest.

How to Get There

🚗 Getting There

Trung Trang Cave is inside Cát Bà National Park, 17km from Cát Bà town on the main road toward the park interior. By motorbike from town, about 25 minutes. The cave is on the same road as Hospital Cave and the national park trailheads - a northern Cát Bà day can cover all three efficiently.

What to Expect

👀 On the Ground

A jungle path of 15–20 minutes leads from the road to the cave entrance. Inside, the first chamber is large and well-lit with notable stalactite formations on the ceiling. The passage to the second chamber is lower and narrower. The bat colony roosts in the upper sections of both chambers - the sound and smell of the roost are detectable before the bats are visible. The cave exit returns through the entrance.

Travel Tips

🧳 Tips

Trung Trang is worth combining with Hospital Cave and the national park trailhead in a single northern Cát Bà day - all three are on the same road and together cover the island's main historical, natural, and geological sites. On its own, the cave is a 1-hour visit that does not justify the 17km drive from town.

Insider Tips

Based on real traveler experiences and commonly mentioned advice from multiple visitors.

Visit independently by taxi to avoid crowds and spend 45 minutes to 1 hour exploring at your own pace
Wear sneakers or trainers rather than flip-flops; shorts suitable for warm months like April
Research cave history in advance; limited on-site information boards but legend of Trung Trang sisters adds cultural context
The cave is 17km from Cát Bà town - combine with the national park trek or Hospital Cave on the same day to justify the drive
The bat colony exits the cave at dusk - timing the visit for late afternoon gives the option of seeing the emergence
The cave interior has installed lighting but some sections are dim - a phone torch improves the formation detail
The jungle path to the cave from the national park road is itself scenic - look for macaques in the canopy overhead
The cave is cool year-round - a brief respite from the outside heat and humidity

FAQ

Common questions from travelers who've visited this place.

How long does it take to visit the cave?›
15-30 minutes for the cave walk itself, plus 100-140 stairs to reach the entrance. Plan 45 minutes to 1 hour total if exploring at leisure
What is the ticket price and what does it include?›
120,000 VND includes both Trung Trang Cave and Cat Ba National Park entrance. If visiting national park first, cave entry is free. National park only costs 80,000 VND
Is this cave suitable for all fitness levels?›
Not ideal for those over 5'11", very overweight, claustrophobic, or with mobility issues. Requires crouching, squatting, and navigating low passages and stairs

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