My girlfriend and I will be in Laos during December and we are looking to travel by boat between Luang Prabang and Nong Khiaw. We also wish to see the Pak Ou caves during our time in Luang Prabang. I am under the impression that the caves are on the way to Nong Khiaw, so is it possible that we could see the caves on the way to Nong Khiaw? I know that there are tourist boats which go straight to Nong Khiaw from Luang Prabang, but that these only leave when they are loaded with tourists, and I have not read anything about these boats stopping at the caves. Is a private boat the only way that we could see the caves and travel on to Nong Khiaw in the same trip?