You live that song, Laura. You will enjoy that trail. You won't see any waterfalls by then, but I'll bet the fall colors will explode from that vista. I hiked the panorama trail with a buddy who isn't in great shape. It isn't too hard on the lungs because all except for about 700 vertical feet after the creek, it is all downhill, but downhill hikes can be kind of tough on old joints. Taking the JMT down after Nevada Falls can help that. Hopefully mom and pop can enjoy it with you.

Brent