From the Curran Trail
, Seaview starts as a short singletrack section to Wildcat Canyon Road. Cross the road to continue on Seaview, which is a fire road at this point climbing steadily to the junction with the Quarry Trail
and Lower Big Springs Trail
. The trail climbs gradually and is shaded in the lower section but becomes steeper, rockier and more exposed as it approaches the ridgetop viewpoint. Some sections are very steep.
There's a rest bench at the high point with breathtaking views of San Francisco Bay. It's a short descent to the junction with the Upper Big Springs Trail - 11% grade
, then Seaview continues climbing around Vollmer Peak to the parking area on Grizzly Peak Blvd.