There are a few clubs that have an active surfcasting section from what I’ve seen at the interclub competiton. The ashburton club surf section is dead but since I’m a member I can still go to any of the interclub competitons. The clubs I can remember from the comps I’ve been to are woolston and hornby I think (http://www.woolstonclub.co.nz/clubs/fishing, http://hornbyworkingmensclub.co.nz/fishing.htm). Rig do like it when it’s a bit rough, sometimes when it’s calmer you’ll catch none. You’ll get elephant fish when it’s calm though and crab/pipi works for them, although it’s getting a bit late in the year for them now not sure if there’s still many around.