Rounding a buoy or marker
I have had on several occasions when sailing past a buoy/marker an impact sound and dinghy comes to a sudden stop. But I am way clear of the marker.
Was it by any chance related to hitting a cardinal mark? https://en.wikipedia.org/wiki/Cardinal_mark
Greg Dziemidowicz: ah, may well have been. I should learn what they mean. Thanks, will know to stay clear