This is how Oregon is carefully and gradually reopening state parks:

[Amaryllis]

https://oregonstateparks.org/index.cfm?do=v.dsp_featureArticle&articleId=272
This is very well thought-out and coordinated with nearby communities.

Here is just part of the plan (the rest is at the link) to give you an example:

2. How will you reopen safely?

All decisions about reopening follow recommendations from the Oregon Health Authority and are based on these main points:

.Where can we open without straining nearby communities?
How can we keep visitors and staff as safe as possible, given reduced services and staffing?
How can we keep facilities clean, allow for adequate physical distancing and monitor parking lots, among many other operational duties?

3. Why are only these parks open right now?
We are opening parks for limited day-use carefully and methodically, and after consultation with local communities. Other parks will slowly resume some services beginning May 11.

4. What should we expect now that some parks are open for day-use visits?

Because of the closure, we did not bring on our usual seasonal staff and volunteer hosts. Staffing is very limited and will continue to be limited when we slowly welcome back visitors. Please understand that service levels may not be what you are used to, and areas and buildings within the park may be closed. Visitors should also expect new restrictions that discourage group gatherings and congestion.

Visitors should expect a different state park experience than they are used to.

Please prepare:
• Stay home if you’re sick.
• If you visit, stay local and close to home-- meaning less than 50 miles in urban areas.
• Only visit the park with members of your household.
• Bring all supplies—food, water, hand cleanser—needed for a short trip.
If a park appears crowded, leave and come back at another time.

If there’s space at the park, please:
• Wear a face covering. Homemade is fine.
• Stay at least six feet away from people who aren’t from your household. Further apart is better.
• Cover your cough with a tissue (then throw it away), or the inside of your elbow.
• Leave no trace: pack out everything you bring with you.
• Stick to low-risk activities to reduce stress on local emergency response and health care systems.
• Keep your visit short. Restrooms and other buildings may be closed.
• Watch for signs at the park for more information.

[Igel]

1. Most of those sound familiar.

"Face covering" is not what I've heard for local parks.

"Leave no trace" is cub scouts.