Don't take a new guy in a ducky down foxton. It may seem gravy to us... but it requires a few moves that can dump someone in a rough little creek to swim.
I did it once with a bud who said he could handle it, and had been in a ducky a few times before... he took a good beating in a few spots, and didn't have the fun I was hoping he would.
Honestly, I've taken beginners down Sf S platte at this level before... it's slow, chill, and low consequence. Boring for you... but a good intro run.
Discover Denver, stay there!