Brent and Shirley Cairns don't know what lurks beneath their feet. They've been told their section in Kaiapoi is red-zoned, but they don't know why.
They haven't been shown any land information, and to the naked eye they say there's no physical evidence it has been damaged at all.
So they are digging in their heels and refusing to budge - and others say they'll do the same.
What’s Gerry Brownlee's reaction to the red zone rebels?
Watch the video.