Ferry service from Shenzhen Shekou Port to SkyPier of HKIA resumed from 28 October 2020.
As of 11 Nov., There are two ferries per day.
Only passenger who connect flight at HKIA on the same day can use the ferry.

※ Ferry service from HKIA Skypier to Shenzhen Shekou continues to be suspended.

https://www.cksp.com.hk/en/over_view/news/2c9fd92d73fcf61b0175b5473fdb015c