Originally Posted by
jimincalif
I can recommend See and Prefumo. And I think you are doing it right going from Avila to SLO. Nice tree canopy on much of the See climb. Maybe a mile or so of dirt at the top, I was on my gravel bike running 38s at the time but don’t think I’d have difficulty on my road bike with 25s either.
I also agree 166 is not bike friendly, both due to [lack of] shoulder and truck traffic. Enjoy your rides.
Thanks. I'm pretty sure it was your ride description and Strava route that I found that made me decide to try those two canyons. I have ridden up there a few times but never would have found that route without your posting.