I went to the Stop the War march in Tamariki Makaurau yesterday. Despite the impending cyclone, and the implied threats of violence from pro-US counterprotesters, a few hundred people attended. Enough to block Queen St and Custom St while we marched down to the US consulate, and did a mass die-in. This video covers it pretty well;
https://www.youtube.com/watch?v=KWJ0lPckSNQ
There's another day of action planned for May Day (May 1).