Meron din free walking tour sa Sydney. Check http://www.imfree.com.au/
Para sa akin, life in Australia is a lot simplier compared to what I have been used to in the Philippines. Nature tripping kasi malimit na ginagawa ng mga tao. Maramin malalaking parks unlike sa atin na ang Malls ang ginagawa nating parks.
Maaga nag sasara ang mga malls and shops dito, except on Thursdays. Generally, malls and shops close at 5:00 pm. However, meron din mga resto and bars sa CBD na open hanggang hating gabi if that is what you like.
During weekdays, people are usually in a hurry to go home after work either to pick up their kids from the Child Care Center or dahil walang nag luluto para sa kanila lalo na for those with kids, unlike sa atin na may mga nag luluto for us (which is what I miss in the Philippines)
People always look forward to weekends as they have a lot of places to explore. For a start, you can try checking the following sites:
http://www.tripadvisor.com.au/Attractions-g255060-Activities-Sydney_New_South_Wales.html
250 Attractions
204 Activities
42 Night Life
38 Shopping
http://www.sydney.com/things-to-do/family-holidays/top-attractions-for-kids
http://www.weekendnotes.com/best-sydney-weekend-escapes/