While I feel terribly for the citizens of Cozumel who depend on tourist dollars I think that the reefs ecosystem was strained to its limits before the Pandemic. The last time I was there in 2019 they had just started the closures. The poor health of the reefs, bleached or dead / dying coral and an absence of sea life was noticeable, at least to my eye. I got open water certified with my daughter in Cozumel around 2010 and have been there diving most years since so I witnessed the decline overtime but 2019 was quite a shock. In any case I am wondering if the Covid 19 pandemic was a blessing in disguise for the reef. With fewer boats, divers, guests at the hotels and no cruise ships the environment has had a vacation and I am hoping the reef is thriving again. I am traveling to Cozumel in May with the family so I will get a chance to see first hand. Fingers crossed.