Introduction to the natural oxygen bar: Kunyu Mountain Park is a natural oxygen bar with more than 70,000 acres, dense forests, rich vegetation and extremely high negative oxygen ion content. It has special effects on improving immunity, treating coronary heart disease, and stabilizing the mind. In summer, the temperature in the oxygen bar area is about 6 degrees lower than other places, which is called "natural air conditioning". The red pine forest oxygen bar is equipped with stone tables, stone benches, hammocks, tents, etc. It is the best choice for health and fitness.