Virus questions

Some writers suggest ways to keep from getting cabin fever during this time is to walk in the park, etc. A few States would not even allow this, I think, because they are going on lockdown - leave your house only for essential reasons only. Can the virus be transmitted through a walk in the park? If not, why the extreme measures?

We in Pennsylvania are on a stay at home order but they allow us to go out and get out for walking, exercising, grocery store, or other need store runs, etc. They just suggest the social distancing of 6 feet apart and now wearing face masks. They also have us being in at 8pm for the most part except for essential workers. Its not as strict as it sounds. Cary