The Blue Pools Track is a very popular short walk through beech forest to the Blue Pools on the Makarora River. It does tend to get a bit busy in the high season, so winter is not such a bad time to visit. The good news: the pools really are very blue! Plus there are plenty of river stones to add to the very large collection of mini cairns alongside the river.
You can continue further on the Blue Young Link Track or the Blue Valley Track for a while if you want to. But the pools are in fact the highlight. Note that sandflies can be a nuisance if you stand around for too long.
If you happen to be driving by on a rainy day, it’s still worth stopping at the carpark for the views down the valley.