Not many photos here. I took these as we were leaving and the pools were beginning to fill up. And I’m totally copy/pasting from their website:

Three cascading, marble-lined pools (38˚C to 39˚C), feature alkaline water. The smooth terraced walls provide a popular resting spot for bathers!
The large deeper alkaline pool (38˚C) is an excellent place to stretch out for some light activity.
The three Priest Spa pools (39˚C to 42˚C), offer special thermal bathing in acidic water from the Radium hot spring, long renowned for its therapeutic properties.

Guarding the reflexology foot path

Looking over Lake Rotorua

Looking over the original bathing pools, now a protected historical site

Deepest pool that you could actually swim in