There are two of them, set apart in the garden, timber paths running between. One is the Bali Garden, an infrared room that holds a gentle fifty to sixty degrees and takes up to three. The other is the Zen Garden, a proper Finnish sauna that climbs to eighty, dry or steamed however you like it, and seats four. You choose your heat, then walk out into greenery to cool down between rounds. It is on the Scenic Road at MacMasters Beach, which is exactly the sort of address that suits it. No spa lobby. No upsell. Just heat, garden and quiet.