VOA as German Citizen

Hi I am holding German passport and planning to go Hainan. I have been there a few years ago with a VISA. I have Zero information about VOA in Hainan. I know VOA from Shenzhen. I am traveling from Germany to Haikou. Am I be able to get visa at border crossing, AFTER Corona? I am looking for about 30 days . Any suggestions thanks in advance.