There's also strong linguistic evidence of Polynesian contact with South America prior to European contact, and quite possibly contact with North America[0].

There's also some more recent genetic evidence[1].

0. https://www.jstor.org/stable/25132351 1. https://www.smithsonianmag.com/science-nature/native-america...

It's possible that they not only reached it, but spread across both American continents before Europeans arrived.