First attempt at City2Surf this Sunday. From pictures I saw online, most people run empty handed, I'm thinking of carrying a light backpack with water bladder and to put other stuff in, is that a good idea?
I think it will be cold in the morning, so I need a jacket and somewhere to put it when it warms up.
Sydney?
You don't need the water bladder, there will be drink stations where you can get cups of water all the way round.
A light backpack or a bumbag is useful for items like car keys, travel cards, money etc.
You will definitely need a jacket or pullover. When you warm up, you can take it off, then hold both arms, twirl it around to roll it up on itself, and then fasten it around your waist, tying the arms in a knot. Some people just take an old garment and chuck it when they warm up, but if you stash it around your waist, you've got something for the end when you stop and start cooling down.
If you want to enjoy the event, start slow. Don't get carried away by the excitement of the start and burn yourself out in the first couple of kilometres. Good luck.