Rain is the West Coast's default setting, so the local playground plan is really a triage of which builds hold up in drizzle and which need a clear morning. Cass Square Playground in central Hokitika is the one families point strangers to, with a clock tower centrepiece, climbing walls and slides threaded between levels, talk tubes, a flying fox and a fenced layout that suits toddlers and big kids alike. It is the standard the coast road measures its other plays against, and an easy stop on the SH6 run south.
In Greymouth, Dixon Park on Tainui Street does the everyday shift. It sits on a 6.5 acre reserve with a small creek and a summer public pool, and the play space splits into a gated toddler area with sensory panels and a bigger zone for older kids, plus a barbecue and shade for the picnic afterwards. Seebeck Children's Park at Karoro trades on its setting beside the beach, a modest playground with swings, a climbing frame and enough shade to sit out an afternoon while the older ones drift onto the sand. Across the river at Cobden, Jellyman Park tucks a playground alongside its sports fields with parking that looks straight out to the water, an easy pull-in for the northern-bank families.
The single feature worth a detour is the near seven-metre Black Forest Tower at Lazar Park in Hokitika, redeveloped by the local Lions Club to suit more kinds of play. Further out the plays get sparser but still count: the Reefton playground on Walsh Street covers the old goldfields town with swings and a climbing frame, and the Haast township playground anchors the remote southern end of the coast, a picnic-table rest stop with slides and toilets before the bush walks start.