SPA is the abbreviation of "Latin soluble para aqua", which means "balanced and healthy water". Modern people refer to a treatment method for human body, also known as "hydrotherapy", that is, taking water as the medium, using the contact between people and water, some components beneficial to human health can penetrate into the human body through affinity, thus achieving the purpose of treatment or beauty. Now the concept of SPA has been greatly extended, and some people call it "five-sense therapy", which not only achieves the feeling of unobstructed body and mind through the five sensory functions of the human body: sight, smell, hearing, taste and touch. SPA is the most common form of spa. According to research, the name of SPA originated from a small town called "SPA" in Belgium during the Roman Empire, because there was a hot spring there, which was famous for its beauty and even for treating diseases. Only in modern times did scientists discover the secret of hot springs. The essential oil in the water comes from the soaking of thousands of flowers and plants on the local mountain in the upstream water source. So now people simulate the construction of similar environment and water quality to make it have a healthy and bodybuilding effect on the human body, which is the modern "SPA".

The key of modern hydrotherapy is water resources and water equipment, such as barrel bath, wet steaming, dry steaming, shower and hydraulic massage bath. And minerals, seabed mud, flower extracts, plant essential oils, etc., are often used to improve water quality and act on the human body. In real life, SPA has the following functions: beauty beauty, relaxing body, soothing body and mind, healthy skin, treating diseases and so on.

Since it is generally more appropriate to wear less clothes to do SPA, don't go together if you are not a couple or something.