Tourists admiring the Sung Sot cave system on Bo Hon Island, lit up by artificial coloured lights showing stalactites and stalagmites, Ha Long Bay

---

Interior of the Sung Sot or Surprise cave system on Bo Hon Island, lit up by artificial coloured lights showing stalactites and stalagmites, Ha Long Bay, Vietnam

---

Size: 3800px × 2524px
Photo credit: © RZVI_Images / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: amphitheater, amphitheatre, attraction, bay, bo, cave, cavern, colourful, colours, grotto, ha, halong, heritage, hon, island, lights, limestone, list, long, nam, people, phreatic, site, sot, stalactites, stalagmites, sung, surprise, tourism, tourist, tourists, travel, unesco, viet, vietnam, world, ô