Half-Day Cat Ba National Park Trek: Hospital Cave

A hospital built inside the mountain during the war still stands deep in the cave.

A 4-hour guided trek through Cat Ba National Park combines two of the archipelago's largest caves: Trung Trang Cave, with formations thousands of years old, and Quan Y Cave, a military hospital carved into limestone during the American War. The guide speaks English, pickup is included, and the trek suits travelers with moderate fitness who want nature and history without a full day commitment.

Step-by-step itinerary

Trek Cat Ba National Park and Caves

• Explore Cat Ba National Park
• Visit Trung Trang Cave
• Tour Quan Y Military Medical Cave

The experience

Four hours gets you through the core of what makes Cat Ba National Park distinct: primary tropical rainforest on limestone, cave ecosystems, and the only habitat in Vietnam where the endangered Cat Ba Langur survives. The trek starts at the park headquarters and moves between two major caves, each one a different kind of geology and human story. Trung Trang Cave stretches roughly 300 meters through the mountain, its interior lined with stalactites in shapes that draw tens of thousands of visitors yearly. Bats hang in the chambers. The walk from the park center takes about 10 minutes to reach it.

Quan Y Cave is where the trek's historical layer becomes concrete. Located midway up the mountain, it was originally called Hung Son Cave but was modified during the war years to function as a field hospital. A place where wounded soldiers were treated deep inside the limestone. The cave structure itself is natural, but humans carved it into a working medical facility, which is why it carries the name Quan Y (Military Medical Cave). This is the experience the description emphasizes as unique to Cat Ba: not every destination has a cave that served this purpose, and walking through it means standing in a space that held both geological time and a specific moment in Vietnam's history.

Your guide speaks English and carries water and insect repellent. The trek demands moderate fitness, not a casual stroll, but built for people who can handle uneven terrain and climbing without specialized training. Infants can come if held by an adult. The park is not suitable for travelers with spinal injuries, poor cardiovascular health, or pregnancy.

What’s included

• English-speaking guide.
• entry to Trung Trang Cave and Quan Y Cave.
• small water and insect repellent.
• hotel pickup.

Options for this experience

2 options

Half-day trek through Cat Ba National Park to Hospital CaveGuide in English · 08:00 and 13:00Trekking in Cat Ba National Park: we have around 2 hours for sightseeing and hiking here. Pickup is included

Half-day trek in Cat BaGuide in English · 08:00 and 13:00Transport by bus or car: cars collect you on the main roads and take you to the sights. Length: 4 hours, departing 8:00 am and returning by 12:00. Trekking Cat Ba National Park: the bus picks you up at your hotel in the center of Cat Ba town and travels along the main road through the romantic island, visiting 2 caves. You can walk around the park for 2 hours, take in the natural scenery and climb the high mountain. Pickup is included

You'll see the exact price of each option when you check availability.See dates and prices

Before you book

Days and timesEvery dayDepartures at 08:00 and 13:00

Book up to1h before

AgesAdult (15 to 69 years) · Senior (70 to 80 years) · Youth (13 to 14 years) · Child (3 to 12 years) · Infant (1 to 2 years)

GroupUp to 10 · max 1 per booking

Live guideEnglish

Meeting point and pickupHotel pickup included.

Cancellation and refundsFree cancellation up to 24 h before the start. After that, no refund.It may be canceled due to bad weather. If that happens, you're offered another date or a refund.

Prices and times updated 9 days ago

Good to know

Moderate physical effortNot recommended during pregnancyNot recommended with heart problemsNot recommended with back problemsInfants must sit on laps

Operated by Aroma Viet Nam Travel

Is this one for you?The 4-hour window fits travelers who want both nature and history but can't commit to a full day, and the guide's English means you get the context of the military cave without needing to navigate the park alone.

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Top questions

Can children come?

Yes. Ticket types: Youth (13 to 14 years); Child (3 to 12 years); Infant (1 to 2 years).

What happens if it rains?

It may be canceled due to bad weather. If that happens, you're offered another date or a refund. Free cancellation up to 24 h before the start.

What is Quan Y Cave and why is it called the Military Medical Cave?

Quan Y Cave is a limestone cave midway up the mountain that was converted into a field hospital during the war against America, where wounded soldiers were treated. It was originally named Hung Son Cave but took the name Quan Y (Military Medical) because of its wartime use as a functioning hospital inside the mountain.

How long does it take to walk from the park headquarters to Trung Trang Cave?

Trung Trang Cave is about a 10-minute walk from the Park Headquarters, located 1 km south of the National Park's center near the road to Cat Ba Town.

What's inside Trung Trang Cave that makes it worth visiting?

Trung Trang Cave stretches approximately 300 meters through a limestone mountain and features countless stalactites in varied shapes formed over thousands of years. The cave also has a colony of bats hanging inside, and visitors learn local legends about Cat Ba Island as they walk through.

Is this trek suitable for someone who is not very fit?

The trek requires at least moderate physical fitness. It involves walking on uneven terrain and climbing, so it is not recommended for travelers with spinal injuries, poor cardiovascular health, or pregnancy, but it is manageable for people with a reasonable fitness level who are comfortable with natural, undeveloped paths.

What does the guide provide during the trek?

Your English-speaking guide includes small water and insect repellent as part of the tour, along with entry to both caves and navigation through the park.