How to arrange Chinese Tourist Visa

Brandon, firstly, prepare those documents for mainland China tourist visa: your passport and its copy, a completed application form attached with a passport-style color photo, and proof of transportation and accommodation arrangement. Next, submit the application to the consulate general of China to apply for the tourist L visa.
As for HK, US passport holders can enjoy free entry to go there for a stay of not more than 90 days. You just need to bring your passport, the return/onward ticket, and enough travel fees.
In Beijing, the climate is warm, windy and dry but temperature varies sharply between the day and the night.
In Hong Kong, the weather may be warm and humid, accompanied by fog and drizzle. The average temperature is 18 C (64 F) to 25 C (77 F).