The whole expedition was great but I will try and give suggestions.
Before I left I would have liked to been given a summary of what I could have expected to see. For example the flora/fauna.
Since we spend a lot of time on the trail, it would be more interesting to spot plants or animals that we recognize from a summarized list instead of a broad base that we would learn from our own searches about the large country of Peru.
A short description of Peru culture descriptions would also help for those that might not be accustomed to traveling abroad. Everything was great, I loved it. Thanks.