Follow I-81 south to exit 150 north of Roanoke. Get on US 220-A to Bonsack, about 5 miles.
Turn left on to US 460 east toward Bedford.
At Bedford, get on SR 122 toward Rocky Mount. There will be signs for the state park near Moneta. Turn left on to route 608, White House Road to get to route 626 (Smith Mountain Lake Parkway). The park itself is on SR 626 and will be on the right.
Note, if you cross the lake over Hales Ford Bridge you will have gone too far.
This route will be relatively easy and mountain free.
