I checked my log for two ICW
passages for this span (North Lake Worth
to Barnes Sound) and came up with about twenty hours,- and we do open most bridges. Our favorite anchorages
along this route
include Pelican Harbor near Delray Beach, Lake Sylvia in Fort Lauderdale
and the Marine
Stadium in Miami
. We often take the ICW southbound because of the northbound Gulfstream current
here an we make good time inside unless the winds is brisk from the west for a great sail which is rare. We often ride with the current
when heading north. Some will say that there is a countercurrent close to shore, but this is a myth. I grew up swimming at the beach in Lauderdale and we ALWAYS had to walk back south to find our towels and shoes even after a few minutes in the water!
PS - I looked back and saw the Gibson 50. Is this a Houseboat? If so, forget about my advice about the favorable west wind
for sailing! My 20 hours was with a speed of 6.5 kts and an average of ten minutes waiting per restricted bridges under 55', this probably totals to about two and a half hours.