A couple of weeks back, I took the train to the Wairapara. When we emerged from the tunnel through the Rimutaka Ranges (which at 8.8 kms is one of the longest train tunnels in New Zealand), the landscape was striking. Firstly, what struck me was the sheer scale of the agricultural plains, the indigenous forest that once covered the hills and plains long ago replaced by an orderly patchwork of fields. But, a second glance down onto the plains to the east revealed the presence of a large watery expanse: not blue, exactly – more swirls of green and brown – but unmistakably a lake. (more…)