To get to the Mori Ridge trail head, Take Highway 1 and turn east onto Mori Ridge Road and continue uphill past Shelldance Nursery. Parking is available at the end of the nursery.
Take Mori Ridge trail 1.3 miles until reaching Sweeney Ridge trail. From here you may turn back, or continue on Sweeney Ridge trail until you hit a Nike Missile Control site or reach Sneath Lane or Bacquaino trail further beyond that. Total elevation change is around 1000ft.
Pacific coast, west side

SF Bay. Note Sign Hill Park in the distance.

Trail: Mori Ridge + Sweeney Ridge trails, 4.6 mi round trip
Difficulty: Moderate (elevation change)
Photos courtesy of Mike Y.