Had visited hongkong macau last year for 7days it was during 1st week in october chinese new year so had lot to do...to give an idea in brief we visited bigbuddha in lantau on day one ,hongkong disney land other day,one day to explore shopping is required,macau we kept as day trip but you can extend and stay for the night,the day before we left we visited lamma island...lot to do in and around honkong so you will have to choose options according to your liking...message me if you have queries...hope this helps