There are a few different levels to this book. First, there is the part about adventure. That part is interesting and fun. Then, there is the part about the science. That part is mixed. The idea that the people of the Pacific Islands came from Peru is wrong (according to linguistic, pottery, and DNA sources, they apparently came from Taiwan), but it is kind of cool that he did all this to prove a theory based on what he was told by indigenous people. Then, there are all the race issues. It is pretty clear that he has a "noble savage" idea and is trying to prove that it was some great white ancestors who came across the seas. So, all in all, it is a slow book that has really interesting moments and some that are frustrating or uncomfortable, because of the way he talks about the native people. I'm glad that I finally got to read it, but it definitely wasn't my favorite.