Druid, your other option is to head up the Awhitu Peninsula, a few campgrounds and places to pitch a tent. From there you can fish the West Coast or if weather does not permit, the Manukau Harbour is an option.

Check out the link below, this is off the Auckland Forum and points you to the Waiuku Thread, heaps of info here....

http://www.fishing.net.nz/asp_forums/waiuku-and-surrounding-areas-for-surfcasting_topic62767.html