Let's look at what the science says.
Results: Three hundred and eighteen outbreaks with three or more cases were identified, involving 1245 confirmed cases in 120 prefectural cities. We divided the venues in which the outbreaks occurred into six categories: homes, transport, food, entertainment, shopping, and miscellaneous. Among the identified outbreaks, 53·8% involved three cases, 26·4% involved four cases, and only 1·6% involved ten or more cases. Home outbreaks were the dominant category (254 of 318 outbreaks; 79·9%), followed by transport (108; 34·0%; note that many outbreaks involved more than one venue category). Most home outbreaks involved three to five cases.
We identified only a single outbreak in an outdoor environment, which involved two cases.
Conclusions: All identified outbreaks of three or more cases occurred in an indoor environment, which confirms that sharing indoor space is a major SARS-CoV-2 infection risk.
https://www.medrxiv.org/content/10.1...058v1.full.pdf
The risk in outdoor activity is very small, unless it involves large groups of people in close contact.
I wonder if the stay at home advocates realize what they are saying. The only way to achieve zero risk and return to normal is worldwide herd immunity or 8 billion shots of a safe and 100% effective vaccine.
The FDA has never approved a vaccine for humans that is effective against any member of the coronavirus family, which includes SARS, MERS, and several that cause the common cold.
Will There Be a Coronavirus Vaccine? Maybe Not
So you might have a very long shelter in place situation on your hands.