Amazing opportunity to view the canopy of the forest. Huge trees, great views, truly a unique experience. It is very physically demanding however, I try to stay in shape, but was absolutely wiped out after doing this. That's not to say don't do this or it isn't incredible, it is to say that it's a physically demanding activity, and if you are overweight or not generally in shape you may have problems, though you can rent a battery ascender which takes the effort out. Tim was an amazing guide, really knowledgeable and competent, if perhaps overworked with the size of our group. If you're afraid of heights you may have some challenges, but that's probably obvious.