Tumby Bay Mangrove Boardwalk

The mangroves at Berryman Street are the reason people visit that end of Tumby Bay, on South Australia's Eyre Peninsula. Visitors walk 78 m into the stand on a 1.8 m wide raised deck above the mud, with handrails the full length and ramps at each end.

A mangrove stand has no hardstand, no water deep enough for a barge and no ground that will carry a machine. The boardwalk was built off itself, with every member light enough for the crew to carry along the finished deck and set by hand, and 8 m joists kept the number of pile lines through the mud down. The same light componentry travelled flat from Queensland, which is how a Queensland crew came to build it. It now stands in saline mud and tidal splash with no timber to rot and no coating to renew.