Sheung Wan is your best bet and to get from the Macau Ferry, cross the road by Wing On, up there a tad, turn right and walk along Des Voeux rd until you hit MOrrison Rd on which you turn left. Walk up there and your first street on the left is Wing Lok (lots of action but often older ladies) and the next one on the left further up is Bonham Strand with 123 Bonham Strand being 10 mtrs on the left. Highly recommend Wing Yee in there for cutie GFE style,
http://sex141.com/en/30320-sheung-wan-141-walk-up-wing-yee.html
If you walk further down Bonham Strand about 200meters you have Mercer str on the right, and in Number 6 you have the fantastic Fei Yei
http://sex141.com/en/30941-sheung-wan-141-walk-up-fei-yee.html who for 3 years was my regular 2-3 times a week jump. Great girl (used to be in 123 back then but seems to have moved to 6 mercer).
If you want all out dirt and filth..... DAN DAN is usually knocking about there somewhere. Shes off the DB right now but give her a few days and she will be back.
At most a 10 minute walk to all these places.