Just getting started here. I’ve found few reliable sources so here is my attempt.
They should get you there. The trails are not very specific but at the coast it’s hard to get lost. Often there are offshoots, but if you come to a brushy ditch, don’t go that way. Or if there are stairs, be cautious as the last few steps by the beach may have been swept away.
Bodega Head Trails – Overlook Trail climbs the hill north, out and back. Bodega Head Trail takes off behind the bathroom at the parking lot and loops around the head. This links to a newer trail overlooking Doran Beach. Easier access to that trail is unfortunately closed. Bodega Head Map
Kortum Trail – Several miles of trail from Blind Beach to Wright’s Beach. The Blind Beach section is too hilly for me. Sunset Beach is the most popular starting point and is currently free. Walking north just under a mile is the flattest part of the trail. Kortum Trail Map
Laguna de Santa Rosa – Here’s a map from the Regional Parks about Stone and Kelly Farms in the Laguna. And from the City of Sebastopol the Laguna Preserve trail map. And a more updated map with new trails.
Santa Rosa Creeks – Here a map of trails along many Santa Rosa Creeks. Of course, the trails are always being improved – or are temporarily closed for improvement. Many trails are being added. Look for the blue signs with the white egret when you’re out driving. Many of those creek have a trail.
Bay Nature - The beautiful magazine has a Find a Walk on their website.
Bike Trails – I’m looking for a new source. Sonoma County Transit had a map, but the links no longer work. Anyone have a map?
LandPaths – Willow Creek (permit only) but includes Red Hill, Pomo Canyon and some of Kortum.
Bay Trail – You can almost get around San Francisco Bay on the Bay Trail. Visit the site to get all the maps
East Bay Regional Parks – maps and loops galore. This is absolutely fabulous.
Pt Reyes National Seashore Map - Trail map and more.
Out of State – can’t help but add things when I happen to come across them
Trails in Restored Everglades Grassy Water Preserve I hear Hog Hammock is a good 5mi hike.