Oasis Spa is a day spa on Sukhumvit 31 in Bangkok offering aroma, hot oil, and Thai massages, reached by shuttle from Phrom Phong Station. You can book courses that combine aroma, hot oil, or Thai massage with a herbal ball and body scrub, and a survey before and after the massage sets the pressure and focus areas. Each private room has its own toilet and shower, so you can shower freely before and after the massage. Because it sits deep in an alley, walking from Phrom Phong Station feels hot and long, so a shuttle or taxi is needed.