Massachusetts Coastal Trails
The North Shore is known for its rocky coast, and Halibut Point State Park is one of the nicer places in the area.
The Boston park and historic landmark includes a long boardwark perfect for exploring the coastline, as well a five-sided fort open for tours during summer months.
There's much to see and many things to do on Cape Cod, but the seashore and its beaches are still the biggest draw.