One of my close friends lives in Baltimore and we live just outside of DC. We were looking for a kid-friendly place to meet and she suggested the BWI Trail Park. We both were a bit confused by the directions since no address is listed on the site, but we met at the Thomas Dixon Observation Area. The parking lot is off of Dorsey Rd in Glen Burnie just after WB&A Rd if you’re traveling east.
It is at the end of one of the runways for BWI. The day we were there, planes were landing in that direction, which was pretty cool to watch. Near the parking lot, there is a small playset and a seating area to watch the airplanes.
There is also a 12.5 mile loop trail around the airport which seems to be popular with runners and bikers, given the number of people who passed us as we walked. The first part of the trail is open, giving an unobstructed view of the planes, but quickly becomes shaded, which was greatly appreciated on a sunny day! We walked for a short while before returning to the park.
The only downside was the lack of bathroom facilities which could be problematic with potty-training/ed kids.
We’ll definitely return to the park again, maybe with a picnic lunch!