. . . promoting capitalist acts between consenting adults.
Karangahape gorge, that bridge in the background is the original railway to Tauranga, before the Kaimai tunnel was built.
On secondthought, no, it's not...
It's the viaduct just past National Park.
I think workingman is right. There should be a rest area just up nearer the bridge from where the photo was taken.
... also Lilliput