Most spas feature a hydrotherapy/hydrothermal pool with warm jets of varying size, shape and power, which you sit under, allowing your body (mainly back and neck) to be pummelled by the force of the water. In addition, there are areas where you lie down and your whole body is massaged with jets (known as a bubble bed). Some also have a Jacuzzi, either integrated in the pool, or separate. The hydrotherapy pools are usually complemented by sauna, hammam (steam bath) and relaxation roommore...See more text