Nice little hike.
Did this with my ex wife in 1993 and a few times since, most recently with my GF Kerri and her daughter in 2015.
Did many times when I was in New Hampshire!
State park isn't officially open until Memorial Day, but the parking lot at the main entrance was snow-free and ungated (and at least half full).
Nice area - like a taller Middlesex Fells, with bigger boulders and not bisected by an interstate.
One of my starting hikes for 2003.