I’ll be honest, and possibly (definitely) biased but I don’t see the problem with her going to an amusement park (I’m making an assumption it’s Disney World, not Land, I can’t speak for California).

I went in August on a Wednesday to Universals and Islands of Adventure knowing it would be near empty. My best friend and her family happened to be in Orlando as well and they went to Disney. Equally near empty. And these parks are super clean and super aware of the safety guidelines. Every step you take, you’re beating given hand sanitizer. they constantly make sure you’re wearing your mask and that it’s an approved type of mask. The parks aren’t playing around. I feel more safe there than in a grocery store or a gas station.