St Clair Beach: what were the wooden posts for?
Compiled by Surf Haunts · Updated 2026-09-21
The line of wooden posts in old photographs of St Clair Beach had a practical job. They were part of a timber structure intended to hold sand along Dunedin's coast. Their history explains a familiar beach image, and why photographs taken in different years don't always show the same scene.
A groyne, in plain English
A groyne runs out from the shore and interrupts sand moving along the beach. Dunedin City Council identifies St Clair's photographed poles as the remains of an old groyne.
That makes them different from a pier built to carry people out over the water. The point was to retain sand. It's an engineering story behind an object that later became a subject for photographers.
A history going back to 1894
The council records the first timber groynes at St Clair being built in 1894. Several followed. That date describes the beginning of the work, not the age of every post in a later photograph.
Its account says there was evidence of some sand building up in calm conditions, but the timber structures performed poorly in storms. The posts are part of a long effort to manage the beach, rather than proof that the problem was settled once and for all.
A beach with a surf community
St Clair Surf Life Saving Club dates its establishment to 1911. The club's history adds the people to this account of timber and sand: the beach has been a place of organised volunteer lifesaving for well over a century.
Why the pictures differ
The council's explanation of coastal change describes sand being moved away during storms and returning more slowly. A date therefore matters when comparing beach pictures. Neither our illustration nor the photograph here is an inventory of the posts visible today.
Have you got an old St Clair photograph?
We'd like to compare dated views of the posts and hear more about the beach's surf community. Email us with a photograph, memory or correction. We'll ask before publishing it and agree how to credit you.
Our St Clair print
Our St Clair Beach print follows the posts diagonally from sand into surf, with a low headland beyond. Jo Fothergill's photograph is shown separately; it was uploaded in November 2011, though we haven't confirmed its capture date.
Compiled from public historical sources and fact-checked against them at the time of writing – not a first-hand or local account. Corrections and memories are welcome; we verify before publishing anything sent in.