1.9 hr
The Nimitz Way Trail traverses the eastern section of Tilden Regional Park. It has a paved surface until you reach the San Pablo Ridge Trail. There are some very minor hills along the way, but overall the trail is rolling and the route is pretty popular. There is free parking, water, and some bathrooms at Inspiration Point.
Gate.
Gopher Snake (Pituophis catenifer).
San Pablo Reservoir