I've always wanted to go back-country skiing but I'm not sure I could. I've only just this year skied my first classified double-black diamond and it kicked my ass. Grew up on the glorified foothills of the southern Appalachians, so I wasn't ready for how difficult and tiring it was skiing through powder up to my thighs.
Thanks for sharing!
~ Mako
Yes, you are right! It requires a great physical condition, but you can quickly achieve one if you practice it very often and you exercise and hike a lot :)