They insist you wear masks. Hand sanitizer before and after rides. I felt more safe in the park than I do at wal mart.It is possible to bring corals on airplanes, but you should do some research on it, and calling ahead to ask a specific airport about their policies is good. Many of them will gladly let you in with water over the normal restricted amount, if it has a live fish in it, since that means it's water and not something dangerous. You would want to ask if coral also counts, since it's harder for the layperson to tell if a coral is alive, or even real. That's for a carry-on, of course. You could check a bag with coral in it, but you'd want to insulate it pretty well, and IMO having them in the carry-on with you is probably best.
Gotta say, though, shocked anyone is going to Disney with a pandemic on.