Pick a light.

Five stations, each with its own rhythm. Point Reyes, Cape Hatteras, Portland Head, Fastnet, Barnegat — streamed live.

A clifftop beam on the California fog line.

The black-and-white spiral on the Graveyard of the Atlantic.

Maine's oldest light, still turning after two centuries.

The loneliest rock in the Irish Sea, and the most loved.

A red-and-white sentinel on the Jersey shore.

Four waters

The conditions decide the signal.

slack

A glassed-off morning, and a light you can count on.

0.3 m swell

fog

The light's gone, so the horn takes over.

vis 0.2 mi

gale

The beam punches through, twice a second.

35 kt

night

The whole coast, lit like a string of embers.

dark