Old Mine Rd. near I80 and the Delaware Water Gap.
http://www.nps.gov/dewa/learn/historyculture/stories-old-mine-rd.htm
Consider stopping at the Walpack Inn for a meal during your trip
http://www.walpackinn.com/
Go to Sparta and drive around Lake Mohawk. The houses are fun and the views of the lake thru the turning leaves are lovely. Have lunch and beer at Krogh's.
Promote your business here - Businesses get highlighted throughout the site and you can add a deal.
As this is the first time my parents (who're not from the north east) are visiting us during fall, we'd love to take them for scenic drives nearby (within a 2.5 hour distance but don't necessarily need to go that far!) to see the fall colors. Any recommendations?
Thanks!