1. Environmentalism: Hangzhou Bay Shell Nature Reserve is a valuable ecological resource in Hangzhou Bay. The management of the reserve hopes to attract more tourists for sightseeing and leisure by opening artificial beaches for free, so as to raise the public's awareness of nature protection and conservation, and thus better protect and maintain the ecological environment in this area.

2. Publicity effect: For Hangzhou Bay Shell Nature Reserve, opening artificial beaches can not only attract more tourists, but also publicize the area, improve its popularity and influence, thus attracting more investment and resources and further promoting the development of the area.

3. Commonweal Hangzhou Bay Shells: Nature reserves are important commonweal resources of the country and society. The management of nature reserves may think that the free opening of artificial beaches is a kind of public welfare behavior, which conforms to the public welfare nature of nature reserves and allows more people to enjoy the benefits brought by public resources.