From I-95/Maine Turnpike:

Take Exit 36 Saco ~ Old Orchard Beach (formally exit 5)
Go through the toll booth Exit 36   Keep over to the right hand side and take Exit 1, to the Industrial Park Road.
As you come down the ramp, you will come to a traffic light. 
Turn left onto Industrial Park Road. At the set of lights, take a right onto North Street/Route 112 North, go over turnpike. Follow Route 112 for 2.6 miles. At the end of a long white fence on your left, take a left onto Louden Road. Follow Louden Road until you come to a stop sign. At the stop sign, take a right onto Route 5 North.
As you come down the hill and over the Saco River bridge, we are the first driveway on the right.  Look for the big BLUE & WHITE sign and white fencing.

From Route 1 in Saco:

Route 112 North to Route 5 North,  Bradley Street and New County Road over turnpike and follow for 3.5 miles. We are located on the right, turn at the Homestead Campground sign, just after the Saco River bridge.

G.P.S will send you further up Route 5