Raumai Reserve is a park at 4884/137 Pohangina Valley East Road in Ashhurst, just northeast of Palmerston North, holding a 4.4 rating from 58 Google reviews. It sits in the rural Pohangina Valley, close enough to town for an easy outing.
A good river reserve lives or dies on the basics: safe, gentle access to the water, flat ground for picnics, and shade that lasts through a whole afternoon. Shingle rivers shift their channels after every fresh, so the local habit is to check depth and current before anyone swims, keep to the shallows, and hold young children within arm's reach. Reserves like these tend to be lightly serviced, so regulars bring their own drinking water and take their rubbish home. Even in midsummer the water runs bracing, which is half the appeal.
A short drive up the valley from Ashhurst, Raumai Reserve offers Palmerston North families a simple patch of river and grass without the fuss.