Feelings of foreign tourists after visiting The natural Thien Canh Son Cave On Bai Tu long Itineraries!Thien Canh Son Cave ( called as Co Cave by the local)is a wild cave inside the Bai Tu Long Bay of Vietnam. Admiring the wild beauty here, a tourist has writen:" The pathway to Thien Canh Son Cave is set below the forest canopy and beside cliffs bringing tourists a feeling of climbing towards heaven. Inside the cave, tourists can see a strangely beautiful image of a lotus and a picture of a small elephant. The ceiling of the cave is covered with a layer of shiny “carpets” and numerous sparkling stalactites look like “hanging lamps”. Stone statues, stone elephants, seals and flowers seem to create an imaginary world of a dream. Located in the centre of the World Heritage Area, Thien Canh Son Cave offers a wild and mysterious beauty. Tourists travel here can discover the geological value of the bay, and enjoy a cozy dinner with family and friends in sparkling candlelight." Source: http://www.redcranetravel.com/Or following Djtraveller on https://www.lonelyplanet.com/" I like the idea of a "slightly" less crowded experience with Bai Tu Long Bay (option 1) but my question is about the difference between Thien Canh Son Cave and Surprise Cave. Would I be missing anything by going to Thien Canh Son Cave instead of Surprise cave? Is there a big difference? Is Thien Canh Son Cave good to see? Thanks in advance! "