The NYT says Clinton expected such a question on the trip, primarily dedicated to economic issues.

The next day we hike down to the crater, and as we head back up through the rain forest, the same guy is telling Kristin that he expected more "active" people on the trip, which I take to mean more young women in spandex.

The physical rating gives you an idea of how much huffing and puffing you can expect on the trip.