I live in Virginia, and there is a dearth of grass strips here that are open to the public. One little gem is Campbell Field Airport (9VG), located in Weirwood, Virginia. This is on the eastern shore of the Chesapeake Bay. On weekends during the summer, they feature "soup on Sunday" where the owners offer chili and hot dogs on Sundays and a good flock of airplanes usually show up to talk aviation and to eat the grub. They have a website that isn't updated very often, but the general information is good. The URL is: http://www.campbellfieldairport.com/ This is a good jumping off point for lots of great spots on the seashore if you want your fill of clam chowder, fish or other seaside goodies.
Another spot that may be of interest is in the Blue Ridge Mountains. The runway is paved and the approach from the north requires a zig-zag around a hill. The airport is listed on the Sectional as private, but they welcome visiting airplanes. The strip is VG18, Sky Bryce airport. It is a ski operation in the winter, but they have lots going on in the summer too. They put up a zip-line through the trees on the ski slopes in the summer as well as having mountain bike trails. They have a good restaurant in the lodge, a lake and a golf course on the property and lots of rental cabins if you want to stay off of the ground for a night. Their website is: http://www.bryceresort.com/Resort/Local-Community/Airport.aspx They have several organized activities during the summer that can make airplane parking in the grass area tight, so check ahead for the day you might arrive.
Like most on this site, I look forward to following your travels vicariously. I might even fly out to join you on one of your stops in the Mid-Atlantic region.

