Marin site draws ‘raw water’ seekers who don’t want tap

By Soumya Karlamangla

The highway that winds along the coast of Marin County offers some of California’s most magnificent vistas, with the deep blue Pacific Ocean glittering through veils of fog. But for a handful of travelers, the views aren’t the prize.

At one blink-and-you’ll-miss-it pullout is a natural spring that draws people from across the Bay Area, some of whom drive hours through traffic to get there. Many of them reject water from any other source and drink only what they...