China Passport Holder working in Singapore holding S Pass. Intend to visit Macau for holiday.

Hi, i am holding China Passport with S Pass working in Singapore. Intend visit Macau for holiday for total of 5days.

Can i enter Macau if I fly directly into Macau from Singapore and return to Singapore from Macau? (Two way ticket)
I fly into Hong Kong and connect via ferry (Sky Pier) to Macau? Will I gain entry without visa? Return from Hong Kong via Sky pier without check out from HKIA.