Hello, I'm Italian and I'll come to Hong Kong for vacation.

I would know if I need any kind of permission to go to Macau to visit some friend of mine and then come back to HK. I got visa to visit mainland China out of Hong Kong but i can do that just once.

In few word I want to go to Macau for more or less 3 days before take the flight back to Italy (flight departures from HK airport). If I can do with no problems, can I go via train or only via ferry if I don't want to use my entry permit?
Thank you.