Starting from September the 10th 2004, this cache is virtual. Logging a find requires you to climb the tree and post a picture of it from the top, or have someone take a picture of you up there and post that instead.
So, your task is to climb a dead tree. There aren't many branches to start with so you have to use something else to get up there.
The root and branches of the tree are slowly decaying so you should try to keep as little weight and leverage as possible on the tree and its branches. I got it up there without any special equipment, so if you prefer challenges don't take a rope with you.