This is a PDF map of the trails in 4 different areas of the park, including the Avalon area which is where the wedding will be held: https://dnr.maryland.gov/publiclands/documents/patapsco_avalonmap.pdf

Cascade Falls is a very short hike from the main road (River Road). If you enter the park on Park Entrance Road, make a left onto Gun Road, you will see a playground and parking lot on your right. Follow that road around the Avalon area parking lot, which turns into River Road. If you pass the Avalon 104 and 105 shelters on your right and continue along River Road you will reach the swinging bridge on your right hand side. You can park in the lot to the left and walk over the swinging bridge to get a nice view of Patapsco River. This is directly across the street from the trailhead which will lead you to Cascade Falls if you choose to check out the falls.

Registry