Beyond scientific knowledge, being there would (much more quickly) yield quite a lot of (higher quality) knowledge about "how to navigate and do things in the G

Beyond scientific knowledge, being there would (much more quickly) yield quite a lot of (higher quality) knowledge about "how to navigate and do things in the Grand Canyon." If I'm going to hire a guide, I'm going to hire the guy who spent a week hiking it instead of the guy who spent a week reading about it or watching videos about it.