Here is a statement from the Virginia government website:
Virginia State Parks is gradually reopening park facilities as the commonwealth eases public health restrictions put in place to contain the spread of COVID-19.
Statewide and park-specific operational plans have been developed to comply with group size limitations and social distancing requirements. Protocols are in place to look after the safety of all guests and staff.
Anyone planning to visit a park for the remainder of spring and through summer should anticipate changes to normal park operations. Some facilities remain closed, and other amenities will not be available as outlined below.
Park guests are encouraged to recreate at parks close to home. Strict social distancing requirements will remain in place. Group sizes are limited to 50 people. Guests must keep at least 6 feet apart from other guests. Anyone who is sick or has symptoms consistent with COVID-19 should stay home.
State parks in Northern Virginia could be impacted differently because of delayed reopening rules."
For the full list of list of state park amenities and status as of June 5, please visit Virginia State Parks' website!