http://www.ele.net/art_folsom/preclvis.htm
The Theory
I propose that the first people to enter the New World did so before 20,000 BP and probably closer to 30,000 BP. They crossed the Bering Strait and gradually, very sparsely, populated both the North and South American continents. They were Homo sapiens and not Neanderthals. They did not make BLADES, spear points or arrowheads, but had a flake technology that was derived from the Middle Paleolithic. Sometime between 17,500 and 11,500 BP a few individuals from Europe, not a reproducible population, found their way into the New World. They did not bring a gene pool, but they brought the Solutrean lithic technology from which the indigenous population adopted the soft hammer percussion technique and the exquisitely made biface. The Clovis point was then invented almost overnight and it spread across the in place population in a very short time.
I was actually looking for ancient sea travel tales and this article did contain one.
Another question that the reader might ask, is how did the Solutrean people get across the Atlantic? I do not know, however I believe it is possible when one considers the first peoples to Australia crossed a 100 miles of open water at least 60,000 years ago. Plus, they must have done it several times because they brought over a reproducible population (> 125 people). In my theory, I only have to have one Solutrean person make it to the New World. They were only carrying ideas.