Halcyon Floats, Philadelphia

Halcyon means "calm" or "tranquil," and that's exactly what guests are at Halcyon Floats. At this cozy shop, a pair of floatation tanks provides an escape from the hustle and noise of everyday life. Inside the tanks, 10 inches of water and 800 pounds of epsom salt team up to create a completely serene environment, in which customers literally float amid total silence and darkness. The myriad of potential benefits that stem from such deep relaxation range from stress relief to pain management—even the epsom salt has beneficial attributes since it's loaded with magnesium and sulfate. Once outside the tanks, guests can continue to relax while enjoying tea and snacks and browsing the local art around the center.