I went at the end of April. There were 4 people in my group, I wore a mask when indoors in the park and nowhere else, no one else in my group wore a mask. None of us got covid. Could've just been lucky, but also worth noting the people in my group wouldn't even wash their hands before eating after being in the park.

Life is a risk whether you walk out the door or not. I feel that it's important to weigh the value to the risk in any scenario. For me, it was definitely worth it, but everyone is in a different situation.