[QUOTE=Appsolute;7904563]
Brentwood is FAR from San Francisco. Not doable for a riding horse (maybe retirees).
And yes Montara is nice (lived there from 1993 - 2000), then Pescadero (further down the coast) from 2008-2014. My parents still live there…
The coast nice, the weather is cool (but I don’t mind), its BEAUTIFUL, and the commute from Montara (or moss beach) is VERY doable (it was taking me about 45 mins to get from Montara - to Daly City BART - to FiDi in SF).
Real estate is expensive, but not nearly as bad as SF.
There are a number of small boarding barns scattered along the coast - BUT not a single covered arena for some reason, and most places do not have all weather arenas. Many do not have lit arenas - so training in the winter can be a bit tricky.
When I was a teen living in Montara - I kept my horse in Woodside for the facilities and trainers down there. My more recent stint on the coast I boarded at a number of places in the half moon bay area (board ranging from $400 for a self care paddock and small arena to $600 for slightly better facilities and cleaning / full care).
I am very happy that I know have an indoor arena with lights (since I moved to the south bay) makes riding in the winter a thousand times easier with my work schedule. Plus the board there (despite having MUCH better facilities) is cheaper.
Wish I could transplant my current barn to the coast - that would be heaven.[/QUOTE]
One indoor in Pacifica 
But yes, all the Montara places have no indoor. I found I didn’t need it, our place had lights and a beautiful all weather arena. There were few days I could not ride if I wanted to (and I did live there the year we had 30 days of rain in March…) But I can see where you might like an indoor for the winter…
Prices have gone up a lot it seems… I paid 250 for stall with paddock (self clean).