I feel like a sad sack but the pools I found were the ones for kids with a big pool and toddler pool. Clean and very well run but not hot enough. I had the kids with me so liked the bigger pools but found them only tepid.
Okoroire Hot Springs Hotel
Lower pool with gravel base
Okoroire Hot Springs Hotel
Lower riverside pool
Okoroire Hot Springs Hotel
Top pool, formally enclosed prior to recent redevelopment.