From the North:
Take I-93 S and Everett Turnpike to Industrial Dr in Merrimack.  Take exit 10 from E. Turnpike.Take Continental Blvd to Howe Dr in Amherst Turn right onto Industrial Dr.  Turn left onto Continental Blvd.  Turn right onto Route 101A. Turn left onto N Hollis Rd, Turn right onto Howe Dr .  3 Howe Drive Unit 1 will be on your left.
From 101A going Eastward from Milford NH

Head east on NH-101A East Turn right onto Caldwell Dr(After Monro, and Before Frederick’s Pastries)  At the end of Caldwell, you will come to a round-about.  You will pass Manhattan Dr. and see Gymnastics Village on the right.  Howe Drive is the next street on your right immediately after “Kinney Towing”

PREVAIL Martial Arts Center will be on your right: 3 Howe Drive, Unit 1, Amherst NH 03031
*Please note:  If you are relying on your IPHONE GPS, I have been told that there is a connection issue on some devices near the rotary on Caldwell Drive.  I would suggest mapping out prior to your first time or just referring to the provided directions here.