I have a question after reading someone said on a Chinese forum that given his activities are confined to the Pearl River Delta, and he was able to make use of the TWOV between Hong Kong and Macao as entry / exit and vice versa.

I asked HOW but haven’t gotten an answer yet.

I thought TWOV only applies to entry from airports? Even though the ferry ports in Pearl River Delta are part of the allowed port.

Does anyone here know the above?