If anyone is planning to go to the north of Vietnam – Quan Ba Heaven Gate, H’mong cultural village, Vuong Castle, Dong Van, Meo Vac, Tu San Abyss Alley, Meo Vac, Bao Lac, Bang Geoc Waterfall, and Ba Be, etc, they may be interested in my (amateur) This website which hopefully gives a feel for things. https://visiontravelagent.com/ We went with a company called Vision Travel.