If it’s cool for people to walk shoulder to shoulder, ass to front, while sweating, screaming and mouth breathing all over each other, why can’t they all stand in piss filled water and do the same thing? The only difference is they are all chanting different things and drinking different liquids.
Nobody is wearing a mask at the beach so that makes it more likely to spread. For the record, I also believe protesting in crowds is a big spreader, too, even if the evidence hasn't shown that yet.
That is not the way science works. You start with a hypothesis. You run experiments to test it (or let stupid people have packed water parks experiences over Memorial Day and the 4th). The evidence you get is the evidence you get. Dining in restaurants with recycled air, no sun light and no fresh air breeze might be another issue, even. with the recommended social distancing (6 feet apart) ... This chart shows the link between restaurant spending and new cases of coronavirus JPMorgan analyzed data from 30 million Chase cardholders and Johns Hopkins University’s case tracker and found that higher restaurant spending in a state predicted a rise in new infections there three weeks later. In-person restaurant spending was “particularly predictive.” Conversely, higher spending at supermarkets predicted a slower spread of the virus. This is evidence that supports the hypothesis, but while a good start correlation is not causation. It is enough for me to still get take out over dine in.