Shanghai Bay National Forest Park is located in May 4th Farm, Haiwan Town, Fengxian District. The construction is jointly invested by Guangming Food Group and Shanghai Chengtou * * *, with a total area of nearly 1.6 million mu, a core open area of 6,500 mu, and more than 3 million trees planted in the park. It is the largest national forest park in Shanghai at present. The average content of negative oxygen ions in the park is 2520 per cubic centimeter, which is a veritable natural oxygen bar. It is worth mentioning that this is one of the few parks in Shencheng that allows citizens to bring their pets into the park.