Take-off and landing is a typical edge ball under the guise of fitness activities. It can meet the needs of those who want to be caressed by the opposite sex to the greatest extent. It is an activity to solve sexual hunger and has won the favor of some hungry people. Men mostly want to try novelty, while women mostly balance their inner dissatisfaction. This kind of activity is mostly carried out in secret places.

SPA, also known as hydrotherapy, is a kind of relaxation and maintenance therapy, which refers to the use of water resources combined with bathing, massage, skin care products and aromatherapy to promote metabolism and satisfy people's vision, taste, touch, smell and thinking to achieve physical and mental enjoyment. It was first popular in the upper class of Europe.