Union Wharf is a historic site on Catherine Street in Woolston, Christchurch, rated 5.0 from 1 review, with a visitor noting good views of the control gate bridge, its position next to Radley Park, and that the site is well kept with little vandalism. A heritage wharf like this usually marks a working river past rather than a scenic one, and Woolston grew up around industries like tanning and wool processing that depended on the Heathcote River for transport, so any interpretive signage on site is worth reading rather than skimming past on the way elsewhere. Small riverside heritage sites like this tend to stay in good condition because of how well the local community looks after them, since there's rarely on-site staff keeping an eye on things. Pairing a visit with the walk through neighbouring Radley Park makes for a longer outing rather than a quick stop. On Catherine Street in Woolston, Union Wharf sits alongside that riverside heritage.