I will be in Laos on the 23rd June for 7 days. Current plan is to cross the Huay Xai border from Thailand then take the boat to Luang Prabang, a couple of days there, then Vang Vieng and then Vientiante. Any recommendations from anyone? Should I go up to Muang Sing/Luang Nam Tha then go to Nong Khiaw instead of the boat trip? Also, should I stop in Phonsavan (between Luang Prabang and Vang Vieng?