the last or first lunar cycle in S.F is strongest tide mover for S.F. area when you see the full moon this Jan 21st the low tide will be its lowest for the year which isnt as low as natural due to water levels rising that damn ice!!! point being at 4;28 like at the end of that 420 joint the tide is as low as it will probably will ever get again in the history of your or anyone elses life... so if your by the beach enjoy it cause it like so many other natural wonders are slipping away from us....7 I dont mean to be negative but I sure do notice my nature dissappearing like sand through my fingers the only thing I can do is watch slowly go b 4 me