Any spotting locations at SYD accessible by foot?

[Andrew V]

Hi,
This is my first post in the forums so apologies if this has already been posted, I searched but could not find anything.

I am keen to do some spotting at Sydney airport but do not drive so I can only go to the airport by train or bus. I've tried accessing some of the spots described in this link http://www.samchuiphotos.com/wheretospotsyd but it only given vague directions and the map isn't very clear. I also found the roads around the terminals are not very walker-friendly either.

Can anyone help with some info or advice about where to go and how to get there etc?

I have been to the observation deck at terminal 1 and it was OK but I would prefer to be outside with a better view.

Cheers,
Andrew