I have watched the condition of this pool complex decline over the years, while conversely Hanmer Springs has improved greatly (admittedly they have far more resources so you can’t really compare). However the setting of Maruia Springs is wonderful and the Japanese bath-house is unique in NZ and has large window overlooking the river and mountains. Not up to its usual standards recently (early January ’08). Pool water was black with algae floating it it (may be caused by environmental conditions rather than a lack of cleaning), some pools only lukewarm, and water pressure of showers much weaker than usual. Worth going if you haven’t been before though. Winter possibly the best time to go (e.g. less sandflies).