Mr O'Brien was rapt.
"I had an idea of what I wanted to do when I went up there. We were given the theme of migration so I selected a rock that was going to fit with what I wanted to do."
Mr O'Brien selected a large slab of basalt rock from Maungatapere and began with his idea, making slight changes along the way. "For me it's an organic process, where you basically have an outline to start with," he said. "Once I'm moving on with those lines I'm seeing more and taking things away too, from the picture I had in my head."
The sculpture took Mr O'Brien eight days to complete.
"It's a good event for public exposure. We had a lot of people through."
Mr O'Brien has previously run sculpture symposiums in Tauranga as part of the New Zealand Garden and Art Festival. additional reporting Northern Advocate