I biked from
#SLO down to
#PismoBeach, which a slight detour almost to
#AvilaBeach.
The City of
#SanLuisObispo had good bike infra, even some bike lanes separated by concrete dividers.
Heading south out of town, you're riding on shoulders, but these roads are pretty quiet. They parallel the 101 and there's not much reason for anyone to drive here. Definitely more fellow-bikers out than cars (granted, it was a holiday weekend).
I met an all-woman riding group who identified themselves as "the chicks" (I see that this is part of the SLO Bike Club:
https://slobc.org/rides/index.html).
The Pacific Coast Railroad ran right through here once; this road might be its ROW, or maybe it's under the 101.