Have you had any experience with taking dock-side tours in any or all of the following cities from LOCALS, rather than Ren shore excursions? Hong Kong, Guangzhou (Canton), Da Nang, Ho Chi Minh, Bangkok, Singapore. Ren prices for shore excursions seem to range from overpriced to outrageous. In December, my wife and I will be doing the foregoing cities on the R2 and would appreciate any info on buying tours from (English-speaking!) locals at dockside. Many Thanks!