I am not an introvert but I love and respect a great many people who are. I wish more people would understand what it means to be an introvert - maybe you are and you don't even realise. Introversion does not equal shyness.
Trail map and photos for an easy an easy, pretty paved trail In Patapsco State Park. This path is wide, shaded, runs along the river, features an historic swinging bridge and has markers explaining the history and features of the area.
The "swinging" bridge . Guide to Baltimore: Suspension Bridge in Patapsco State Park. This bridge was built after hurricane Agnes destroyed the old one. The old bridge really earned the name "The Swinging Bridge".