Heading north again, up the east coast of Tasmania, we stopped at a spot outside the old town of Swansea, which sits on Great Oyster Bay. The road to Swansea is crossed by a deep gully, and the gully is in turn crossed by a bridge: the Spiky Bridge, also known as the Prisoners Bridge.
Constructed in 1843 of local fieldstones, the convict-built bridge was created almost entirely without mortar or concrete. In the book, I mention that there are more practical explanation for the rocky spikes along the bridge than the one I reported, and the most common of those practical reasons seems to be that it would prevent cattle from falling over the edge. I can imagine they’d accomplish that.
Swansea overlooks Freycinet National Park, one of Tasmania’s oldest national parks, but that park, along with the other colonial-period relics in Swansea, will have to wait for a return trip to Tasmania.