I sail on the West coast
and my tidal stream atlas is a vital tool for passage
I plan to set off bluewater
cruising next year, and I expect to use OpenCPN
with worldwide free charting as my go-to navigation
aid; if necessary and possible I will supplement this with more detailed or updated local charting as I go.
However I was wondering if there was a practical (and reasonably low cost) way of securing global tidal stream data, detailed enough for use in passage