Don't know where this really should go, but relocate it if it's wrong, thanks.

I have a question about runways. HKIA has two parallel runways: 07L/25R, and 07R/25L. How would you be able to tell which direction is which? I know that 07 means it's 70 degrees (ie close to the direction of east), but say for example you are taking off from 07L. Would you be on the runway in the north or south? Do you takeoff from west to east, or east to west? Does this change during landing?

Now for the specific question about HKIA. I know that if you takeoff/land with a certain runway, you get a really good view of the HK harbour on both sides. Which are they?

Thanks for helping in advance!