Point Reyes
A clifftop beam on the California fog line.
The station
Perched on the Point Reyes headlands, this light reads the worst fog on the California coast. When the fog swallows the beam, the horn takes over — you can hear it three miles out.
Signal
name Point Reyes pattern Fl 5s (white) range 11 mi (clear) fog horn, 3 blasts / 60s watch automatic + keeper confirmed
When to watch
June through August, the fog sits for days. The light's rhythm stays exact; that's the whole point.