Doofenschmirtz Evil Inc. has gone into the cache making business. If you’re not familiar with Dr. Doofenschmirtz or his nemesis, Agent P, click on the User’s Web Page link above (just below the cache size). You’ll be glad you did.
The cache itself is a well-camo’d shiny silver bison tube that contains a log only, so bring your own pen. Also, you’ll need to be super stealthy, like Agent P, since this area will abound with muggles at times.
Be sure to replace the cache exactly as you found it, so that the next searcher has the same experience. Good luck and have fun!