As a sheltered venue, and considering the location...

As a sheltered venue, and considering the location, Wolf Trap is delightful. There is ample parking, and plenty of assistance to the physically challenged. There are plenty of bathrooms, and that's coming from someone who used to have anxiety attacks about proper access. The staff are always ready to help you, and are professional in their endeavors to keep everyone safe. My best tip is to bring a couple of bottles of frozen water if you're attending a summer event. As they thaw you'll have cold water to drink, and the outside of the thawing bottle, when wiped across the back of your neck is quite refreshing.