Fog Horn and Harbor Waves at Night
Deep Maritime Signals and Lapping Water in a Sleeping Port

A fog horn is one of the most deeply calming sounds in the human auditory landscape. The low, sustained blast — typically around 100-200 Hz — is designed to carry for miles through fog, and its fundamental frequency sits squarely in the range that promotes relaxation and sleep.
This recording captures the nighttime soundscape of a small fishing harbour in fog: the periodic blast of a fog horn at long, regular intervals, the gentle lapping of harbour water against stone quays and wooden hulls, the occasional creak of moored boats, and the muffled clink of rigging. Between fog horn blasts, the harbour settles into a profound quiet broken only by water sounds.
The horn provides a rhythmic anchor — its predictable timing gives the brain something to anticipate and then release, creating a natural cycle of tension and relaxation that mirrors breathing. Each blast also serves as a reset, gently drawing the mind back from any emerging thoughts.