I'm Danish, do I need a visa to Hong Kong to Macau?

Hello, I'm currently living in Zhongshan county. I'm thinking about going on a one week trip to see both Macau and Hong Kong. Do I need any Visa for that? I come from Denmark and I have a single entry to China which is why I would like to join the two places together. Do you know anything about travel expences and prices for a such trip and if you have any adwise at all, plz give them :)

Thank you so much! ;)