From Central Station of Hong Kong Metro to Hong Kong Station, you can transfer according to the following steps:

1. Get out of Central Station and choose the appropriate exit.

2. Take the subway from west rail line to Hongkong Station. This is the fastest route, and it takes about 10 minutes.

If you want to choose other modes of transportation, you can walk. It is about 2 km to 2.5 km walk from Central to Hong Kong Station, about 1 hour.

In short, you can choose to take west rail line or walk from Central Station to Hongkong Station, depending on your personal time and budget.