like to go the morning of Sept.3 from Hong Kong to Yangshuo by bus Could you advise? How to book,thx

I'm not sure where are you depart from in Hong Kong. Ayway, you can take a direct bus at Metropark Hotel Causeway Bay to Guangzhou first. Upon arrival at Guangzhou, you can go to Guangzhou Provincial Bus Station (near Guangzhou Railway Station) to take a direct bus to Yangzhuo (Guilin) and you can get to Yangzhuo in about 10 h.