Direction to Saima Park from Rte 2, east bound (coming from the Gardner direction)

Take Exit 28, Rte 31 towards Fitchburg
Stay on Rte 31 (Princeton Rd) - it will merge with Rte 2A
Stay on 2A/31, until it splits again (Rte 2A / Rte 31 - Westminster St)
Take Rte 31 (Mechanic St) north (towards New Hampshire)
Take a left on to Rindge Rd
Take your first right on to Scott Rd
Total distance from Rte 2  is ~ 7 miles

Direction to Saima Park from Rte 2, west bound (coming from the Boston direction)

Take exit 31, Rte 12 towards Fitchburg
Stay on Rte 12 and take a right on to Water Street
Take a left on to Rte 2A (Main Street)
Take a right on to Rte 31 north
Take a left on to Rindge Rd
Take your first right on to Scott Rd
Total distance from Rte 2  is ~ 7 miles