Hang Ca, Hang Hai & Hang Ba Caves
The boat leaves Van Lam village under its own quiet momentum — a local woman rowing with her feet, hands resting in her lap, as the Ngo Dong River carries you between limestone karsts draped in fig trees and wild grass. The rice paddies on either bank eventually give way to the first dark mouth of Hang Ca, the longest of the three caves at around 123 metres, its entrance wide enough to swallow the light whole.
Tam Coc — literally 'three caves' — strings Hang Ca, Hang Hai and Hang Ba along a single three-kilometre stretch of river. Each cave is shorter than the last: Hang Hai runs about 60 metres, Hang Ba just 45. Stalactites hang low overhead, and bats move in the dark above the waterline.
💛 What travellers fall for
People who've done the trip more than once tend to book the earliest slot — 8:30 AM — before the boats bunch up. They also know to buy embroidered goods from the shops in Van Lam village rather than from vendors who paddle alongside mid-river, where prices climb considerably. Bring cash in small denominations.
The story behind Hang Ca, Hang Hai & Hang Ba Caves
Hang Ca, Hang Hai and Hang Ba are natural formations, carved over millions of years by the Ngo Dong River working through the limestone of Ngu Nhac Mountain in what is now Hoa Lu District, Ninh Binh Province. No single act of human discovery or engineering created them — the river did the work, and the caves simply became accessible by water.
The wharf at Van Lam village, the starting point for all boat tours, grew into a modest local economy around the caves, with families taking turns as rowers and the surrounding village developing a trade in hand-embroidered textiles. The site sits within the broader Tam Coc-Bich Dong area, one of the more visited landscapes in northern Vietnam.
Good to know
Boats depart Van Lam Wharf from 8:30 AM to 6:30 PM. Entry is 120,000 VND per adult; boat hire runs 150,000 VND per vessel (up to four passengers). The round trip takes 1.5 to 2 hours. From Hanoi, the fast train to Ninh Binh takes roughly two hours.
The dry season — roughly November through April — brings clearer skies and lower humidity, making the river journey more comfortable. During the rainy months, water levels rise and the caves can feel more dramatic, though occasional flooding may affect access.
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What travellers say about Hang Ca, Hang Hai & Hang Ba Caves
Experienced this life changing 2D1N cave tour with Oxalis Adventure Tour with our tour guide, Boo, Hwee and the rest of the team. This is not a place where you can travel and explore by yourself. You will need to have a tour guide with a permit. You can book the tour from Oxalis. In this cave, we managed to swim in the cave and get to see fossils & insects that lives in caves such as spiders, crickets & centipede, & scorpion. We also explore chambers of this cave. Precaution to those who are considering touring this cave, it is slippery and dark. They will provide you a helmet, headlight and gloves for this cave. But bringing your own headlight would also be great. I brought mine and I did not regret it. Could always do more light.
I did this cave as part of the Son Doong expedition. It is certainly breathtaking and very recognisable from moves, documentaries, brochures etc. very beautiful and very big. The trek in and out is also enjoyable as it takes you through remote tropical rainforest with lots of wildlife. Great little adventure.
We booked the Oxalis 2 day trek to the Hang En cave about 10 days in advance. It turned out we were the first group of the season which started much earlier than usual. It usually doesn't open until January. It's an amazing experience to stay overnight and explore this spectacular cave system. The size of it is staggering. First day was fairly easy other than the super slippy downhill hike on the muddy trail with a few leaches. The water crossings are fun. The hike back through "leech kingdom" was a slog. It's a tough uphill jungle hike in the heat. That by itself was a good experience but the number of leeches takes the edge off. Prepare to be grossed out when you get back to the road and watch everyone start undressing and pulling off leaches. Even with that it was still an amazing experience. Just be aware of the hike back.
I did Hang En as a part of the Son Dong expedition. It was lovely .. we swam we chilled .. the trek was nice .. worth visiting as apart of Son Dong or on its own ..
Absolutely worth it! Once in a lifetime experience. Oxalis is a very professional company and they are fully equipped to take you on this adventure. I will be back for other tours in the future! Thank you Hein for squeezing us in! You made our trip! Thank you Ben for guiding us with care and joy!
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