The National Park Service is celebrating its 101st birthday by waiving entrance fees Friday.
The "fee-free" day cover entrance fees, commercial tour fees and transportation entrance fees. While no entrances fees will be collected, camping and tour fees may still apply.
Here's a list of Maryland and Virginia national parks you can explore for free Friday:
Maryland
- Antietam National Battlefield
- Assateague Island National Seashore
- Chesapeake and Ohio Canal National Historical Park
- Fort McHenry NM and Historic Shrine National Monument
- Fort Washington Park
- Harpers Ferry National Historical Park
Virginia
- Assateague Island National Seashore
- Colonial National Historical Park
- George Washington Memorial Parkway's Great Falls Park
- Prince William Forest Park
- Shenandoah National Park