Salt's healing properties explain why sea-dwelling dolphins have smooth skin, rarely contract laryngitis, and avoid keyboard-induced carpal-tunnel syndrome. Emulate the prosperous porpoise with today's Groupon: for $30, you get a 60-minute far-infrared-sauna session with himalayan crystal salt at Salt Cave (a $60 value). This Groupon expires in two months.

The Salt Cave harnesses the healing powers of himalayan crystal salt in an effort to stimulate spiritual and physical vitality through a neutralizing array of holistic services. By soaking up warm rays emanating from the Sunlighten far-infrared sauna, partakers can infuse their natural perspiration with stowaway toxins, releasing harmful bodily pollutants and then stepping into the on-site shower to wash away lingering memories of their offices' bagpipe-memo systems. The 60-minute session purports to burn 400–1,200 calories by elevating interior temperatures to blood-flow-boosting levels while enhancing its circulatory prowess. Frequent turns spent lounging in the sauna's cozy chamber may result in dwindling inflammation, a decrease in persistent pain due to fibromyalgia, the reduction of chronic-fatigue syndrome, and the increased likelihood of spying an elusive sauna yeti.