The steady ten second interval of the foghorn combines with the natural rhythm of the crashing waves. They both help to create the sense of calm one might feel when visiting Bodega Bay.
Tune into KRCB.org (104.9 FM Sonoma County) to listen for the current segment. Ear to the Wild is a short interstitial segment aired somewhat randomly throughout the day between other programs. They use shorts and postcards to fill airtime during breaks from Morning Edition and All Things Considered. Also during their music programing, as needed. Greta Mart tends to air them during her show around 4:47 or 5:47.
Check out this link for more information about Bodega Bay:
US Coast Guard: Bodega Bay