Western Park, also called Tuna Mau, is a park listed at 5/7 Howe St in Northcote, with a 4.6 Google rating from 1345 reviews. The directory places it in Christchurch, but its information link is on the Auckland Council website, so confirm the location before you visit.
It has trails, sports fields, tennis courts, a playground and picnic areas. A good park works for many kinds of visit, with clear paths, shade, toilets and well-kept grass and play equipment. Before you go, check parking, whether dogs are allowed and whether courts or fields need to be booked, as sports grounds are often used by clubs on weekday evenings and Saturday mornings. Take water, sun protection and a rubbish bag, wear shoes you can walk in on the trails and keep an eye on children near roads. Regulars visit at quiet times, such as weekday mornings, for the best chance of a free table or court.
Howe St is a residential street, so this park suits local families, walkers and sports players wanting green space close to home once the location is confirmed.