I think it’s probably the most photogenic cave we’ve been to. Lost one star just because I think the $20 per person fee was a might bit steep. Jessie, our guide was great. Very informative, fun, lots of information.
There are quite many caves in Thailand and around that are more interesting than this one. Chiang Dao Cave is well lit in one tunnel and the other one needs a guide and extra torch.
This is not a dive site for inexperienced divers! Years of extensive training in Technical Diving and Cave Diving are mandatory if you want to dive this site. However, if you have the required expertise this is one of the most spectacular cave diving sites worldwide. Naturally, no diving facilities are available on-site -- you will need to bring all of your own equipment.