I think there’s still a small wharf here (1m wide) that is good for red cod and alot of doggies in lyttleton.
http://maps.google.co.nz/maps?f=d&sourc … 2&t=h&z=17
Birdlings flat not the safest for kids unless it’s been blowing nor-w for a few days and i’d still be careful.
All the beaches up the coast (pegasus bay) lethfield, abnerley etc are fishable but you might not have much luck.
Gore bay usually has rig and kahawai to offer. Port robinson bay close by is worth a look also.
There’s my few cents worth, hope it helps.