Must seeCaveDay TripLimestone Cave
Thien Canh Son Cave
Hang Thiên Cảnh Sơn
4.5₫250,000 VND45-90 minutes
A scenic limestone cave in Bai Tu Long Bay known for its striking stalactites, hidden chambers, and panoramic bay views.
Thien Canh Son Cave is a compact but beautiful karst cave on Hon Co Island in Bai Tu Long Bay, near Ha Long, Vietnam. Visitors climb a short staircase to reach the cave, then explore illuminated chambers filled with stalactites and stalagmites before continuing to a viewpoint overlooking the bay.
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What to know before you go
- Thien Canh Son Cave is located on Hon Co Island in Bai Tu Long Bay, northeast of Ha Long Bay. It is typically visited as part of a boat or cruise itinerary.
- The visit usually includes a short climb to the cave entrance, a walk through chambers with dramatic rock formations, and time at a viewing platform above the bay.
Good to know
Culture, safety & access
Culture & etiquette
Crowd: Quieter than the most famous Ha Long Bay stops; go on a weekday or shoulder season for fewer peopleBest season: October-April for clearer skies and calmer boat conditions
Follow crew instructions, speak quietly inside the cave, and do not litter from the boat
Safety & health
Steps can be slippery and boat transfers can be wet; keep valuables in a dry bag
Weather
Trips may be delayed or rerouted during storms, strong winds, or rough seas