Just for a humorous aside, I was present at the replicant landing of the hide boat, "St. Brendan" when it landed on its journey from Greenland to Fogo Island, Newfoundland in the late 70s ( 1979 or 1980, I forget.)
THe boat was about 30 feet long with hides stretched over a wood frame. The three men abopard were scarlet from exposure, and they had full wet suits on.
I have no idea how they managed to do it , just by square sail. She was towed in the last few miles, caught in the doldrum of no landward breeze that day, with a serious storm in the offing.