Going to Hong Kong Macau Ferry Terminal

Hallo from Austria!
Can sombody tell me the best way from Yangshuo to Hong Kong (no flight)

We would like most to go by train from Yangshuo to Guangzhou and then by ship to Hong Kong.
Is there a direct Ferry from GZ Lianhuashan Port to Hong Kong Macau Ferry Terminal (there is our Hotel) ?
On the map we can find it, but no chance to book it. Or do you think that is tooo complicaded and there would be a better way?
Thank you for your help