The Point Reyes National Seashore is staying open during the coronavirus lockdown, but its visitor centers and campsites are closed. And while Marin County Open Space preserves are open, county parks are closed, including the Forest Knolls playground, Toby's Playground in Point Reyes Station, White House Pool, the Bolinas tennis court, Agate Beach, Miller Boat Launch in Marshall and Chicken Ranch Beach in Inverness.   David Briggs