Please take it easy on the container. It is a puzzle that should be worked with care. I am sure one could just force it open, but please don't. I 3D printed the container and hope that you will have fun with it. It is not water tight, but I put write in the rain paper inside with 2 pencils for logging. I think they will stand up alright. Be sure that you also work the puzzle closed to leave it completely reset for the next person. A log on this cache signifies that you have opened it, and closed it completely. Also keep it completely out of site as it has been hidden due to the large amount of jogging and dog walking muggles around the area. And be sure to leave the clue in place.
Cache is on one of my favorite roads and overlooks a reservoir where there are often interesting water fowl to check out. Take your time with the puzzle and enjoy the area and the view, sit down and take it all in.
Check Image Gallery for a picture of the cache container.