And if you're a healthy Harry, then he knows a very cool plant that you can put in your pocket for attracting the ladies.
The Argentines in the group faked grabbing loads of it as Victor showed us around the lodge's botanical gardens.
I left this tour gobsmacked by Victor's knowledge. At every tree or bush he could tell us its Latin name, English name and Spanish name.
At times when the Dutch on tour didn't know what is was called in their language, he knew that word too. He could tell us which plant fixed which ailment and exactly how to prepare it for medicine.
Next stop: I meet Carina, the lodge's pet tapir. She thinks she's a dog. A 200kg dog.
Check out more photos from my trip in my Flickr album.
Find out about Peru.
Read more of Kelly's blogs.
