Somewhere cool and comfy to feed - on the hot days bub will be thirsty and just want to snack a lot on that foremilk, if you breastfeed, so you will want to be well prepared with some good magazines/books and at least a drink bottle.

I agree with the singlets. I found some baby legwarmers handy for when we were in and out of places with cooling, I found it easier than putting pants on and off as the temperature changed.