A pleasant, undulating hike along Drakes Estero (see north district trails, PDF) to Sunset Beach and back.
Gill illustrates the length of Drakes Estero.
Rob slowly sinking into the mud on Sunset Beach.
I think this is a striped shore crab, saw a couple of these guarding the approach to the beach.
(7.71 miles, total elevation gain 1,594 feet, 2 hours 48 minutes (average 2.76 mph), view in Google Earth)
Hike starts at: 38.081683, -122.9142.