Still the issue of the tracking device you need to keep with you. None of them are build for diving. That makes it pretty simple. To me, it doesn't make much sense to come for less than 10 days so couldn't diving just wait until after quarantine.

I wouldn't think the approve anchorages are any good for diving anyway. Is there any diving at George Dog? That's the only one I could imagine being decent but even there you are limited to the 90 minute NPT Mooring time.