For a nice dinner, the Emmitt House in Waverly (about 20 minutes up the road, if that) is really good.
Motorcycle riding is great down there. Lots of lovely scenery. You're not far from Athens, OH, which is where Hocking Hills State Park is. Lots of beautiful places to go hiking.
2 hours north on St. Rt. 23 is Columbus, OH, home of the Buckeyes! We've also got fine dining, theatre, the Columbus Blue Jackets (NHL) and shopping galore.
There are lots of wineries in the state, if you're into that. In about 4 hours you can be at the Rock-n-Roll Hall of Fame in Cleveland. In about 4 hours you can be in Amish country in NE Ohio.
As for lots to do in Portsmouth, well, you're out of luck, but it's quaint.