Once you exit from the steam room, stand under the bucket showers and pull the handle! The splash of ice-cold water will kick your immune system into overdrive, wash away your sweat (and expelled toxins) and cleanse you before you enter the plunge pool.
The plunge pool is your whole-body cold water therapy. It is about 9-10o C. Jump in, submerge, climb out.
The result? You will feel amazing.