4.8 hr
Overview
Climb to dramatic views on San Pablo Ridge, descend to wooded streamsides, and traverse open grasslands. This trip along the spine of the East Bay Hills crosses varied landscapes on trails that range from wide and rocky service roads to duff-covered narrow paths. You gain and lose consider- able elevation in short stretches: a 920-foot gain in Tilden Regional Park and a 600-foot loss in Rob- ert Sibley Volcanic Regional Preserve. This long segment can also be completed in shorter sections.<br><br>This trail description is excerpted from the 2019 Bay Area Ridge Trail Guidebook. For details on all trails, trailheads and more <a rel="nofollow" target="_blank" href="https://www.wildernesspress.com/product.php?productid=16685&cat=0&page=1&utm_source=BARTsite&utm_medium=website&utm_campaign=BayAreaRidgeTrail">buy the book</a> from Wilderness Press.
Trail Stats
15.6 km
557 m
544 m
279 m
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Photos
Seaview Trail view.
Seaview Trail view.
Sibley's Geological Treasures
Sibley's Geological Treasures
Green hillsides dot the landscape along the Skyline Trail.
Green hillsides dot the landscape along the Skyline Trail.
Trail buddies.
Trail buddies.
Tilden Park in spring, looking northeast from Seaview Trail.
Tilden Park in spring, looking northeast from Seaview Trail.
EBMUD Water Tank
EBMUD Water Tank
Fog burning off over the hills.
Fog burning off over the hills.
Taking in the view.
Taking in the view.
View from the Water Tank
View from the Water Tank
Sign #1: "dark basalt dike, a feeder of lava to the crater, that cuts through a sequence of tuffbreccias (grayish brown) and pebbly mudstones (light gray), inside and near the crater bottom."
Sign #1: "dark basalt dike, a feeder of lava to the crater, that cuts through a sequence of tuffbreccias (grayish brown) and pebbly mudstones (light gray), inside and near the crater bottom."