Arrichion South End

Arrichion is a hot yoga, strength and pilates studio on Winona Street in South End whose recovery area adds a Norwegian sauna, cold plunge tubs and red and near-infrared light therapy rooms. Recovery access is bundled with classes: a two-week introductory offer is $79 for unlimited classes plus recovery, or $49 for classes alone. Capacity is limited, so booking ahead is recommended.