I am flying back to Mumbai from Christchurch in Jan 2011 with halts at Sydney and Singapore. I have a 9 hour gap at Sydney between my 2 flights. I want to utilise this longish break for sight-seeing in Sydney.
1. I am applying for a Multiple entry transit as required by the Australian Immigration. Using this can I leave the airport for sightseeing for a few hours?
2. What is the best way to see Sydney considering the time span that I have?
3. My flight from Christchurch lands at Sydney at 8 in the morning and leaves from Sydney for Singapore at 5. Sight-seeing for 3-4 hours in this 9 hour gap isn't risky, right?