Karnak Reserve is a small suburban park at 26 Karnak Crescent in Russley, Christchurch, whose single Google review so far leaves it sitting on a 2.0 rating. Small suburban reserves are a quiet fixture of Christchurch's garden-city layout: patches of mown grass and plantings tucked between houses, valued less as destinations than as green space a minute from the front door. Locals use them for the everyday things — a dog walk, a kick-around, a shortcut — rather than expecting the toilets or play equipment of the city's bigger parks. Dog rules are set by the council and differ from reserve to reserve, so it pays to read the signage at the entrance, and after a wet week the grass can stay soft underfoot for days. For neighbours in Russley, that everyday usefulness is exactly what a reserve on their own crescent exists for.