I sailed my speed boat to Macau last year. First of all, you have to find out where your boat can leave HK. Those with license numbers ending at 8 cannot, but 6 & 7 can do. I spent quite some time to get an approval from Marine Department for changing the boat type. The marine officer who handled my case is excellence in services. He gave me many valuble advice. Once your boat is confiremd OK. You have to pass the formality. This include advising Macau Marina Club to moore your boat and reporting your arrival time. Also, you have to advise Marine Dept and Hong Kong Immigration by when you will leave Hong Kong. You have to ask someone to hande in all passengers ID to these depts for records 24 hours befor you leave. Of course you have to pay fees to Marina Club at Macau. I get this formality done for Club Cyclone Runner.They charge a reasonable price as this is part of their annual activities