Cross the beach with the ocean on your right; granite steps at the far end mark the trail start. Depending on tide and season, a small stream may cross the sand near the steps. The full loop is 1.9 miles round trip, with a shorter 1.3-mile option at a junction. Take the left branch there for the shorter loop; continue straight for the longer one. The coast section has uneven rock, short steep stretches and exposed drops, then the return heads inland through forest.
Parking and accessible restrooms are at Sand Beach. Its parking can be congested in July and August, especially from 9 a.m. to 3 p.m., so leave extra time during that busy window. The beach has accessible parking, but the Great Head route itself is rocky and uneven.