Is your activity in China for commercial entertainment performance? if yes, you are required to provide following documents:
1. Approval document (also copy) issued by the Ministry of Culture or the Cultural Department of related province, autonomous region or municipality directly under the Central Government;

2. A visa notification form (should be used within 6 months since its issuing date) issued by the Ministry of Culture or the foreign affairs office of related province, autonomous region and municipality directly under the Central Government.

If not, a general tourist visa is enough for you to visit China. But be aware that do not mention your purpose for sky diving.