See also: The best spa treatments in Bangkok

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At this holistic spa, layers and layers of imported Himalayan salt line an artificial cave in which guests come to be treated for common city sicknesses like asthma, allergies and insomnia. Spend an hour on one of their lounge chairs inside the dimly-lit, temperature-controlled cave while the salt (which has been scientifically proven to remove dust, pollen and other contaminants from your lungs) naturally cleans out your respiratory system. 

 

Theta refers to a state of mind where brain activity slows almost to the point of sleep; a trance-like state typified by heightened receptivity and creative inspiration. At this spa you’ll find two futuristic float pods and two float rooms that promise to achieve exactly this. Both types of chamber are soundproof and lightproof, filled with around 25 centimeters of dense, skin-temperature Epsom saltwater, which allows you to float effortlessly on the surface (just like the Dead Sea), removing all body pressure points in the process. To celebrate its first anniversary, the spa is offering a two-for-one deal on floats this Nov 2015—see Facebook for details.

 

This spa looks to soothe the aches and pains of partygoers. The decor is cozy and minimal, with touches of wood. Apart from the usual Thai and aroma massages and body scrubs, the real highlight treatments are those aimed at rejuvenating you after a night of partying, like the Hangover Retreat (head massage and special drink) and The Micro Nap. The spa also features a bar—yep, you heard it right—serving wine, cocktails and whiskey. 

 

When celebrated Taiwanese designer Tony Chi created this club-style hotel spa, he made one of Bangkok’s most beautiful wellness retreats. The indoor-outdoor setting feels more like a jungle resort than a city spa. Its 7,000 sq-meter space features six residential spa cottages, nine treatment bungalows, a hair salon and a nail bar—not to mention a modern fitness center, squash and tennis courts plus a 25-meter pool. 

 

Located a little bit out of the city center, this Japanese-style spa offers private onsen tubs and a full line of spa treatments, from traditional Thai massage to body scrubs, manicure and pedicure. It’s designed to look like a traditional onsen house, with all the equipment and onsen salt imported from Japan. They just opened a branch on Sukhumvit Soi 49, too. See our round-up of Bangkok's best onsens.

 

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