I want to Visit Hong Kong and Macau

Maria, you needn't apply one or Macau in advance. When you arrive in Macau, you just need to apply for the entry permit at the immigration checkpoint. It costs around MOP100. However, you are required to apply one for HK in advance. You'd better send your application to HK Immigration Department directly by post. It costs HKD160. Besides, you might pay for the postal service fee for sending your passport and visa back. It's about HKD180. It takes four to six weeks to deal with your application.