The Topsey Turvey Box
Looks like a normal box but the door wont open, well maybe it will if you spin it through 180 degrees!!!
A stainless steel rod holds the door shut and drops away when inverted, a simple but fun hide.
A suitable waterproof box, log book and pencil will be supplied along with woodscrews to attach to a post etc.
Youtube Clip - https://youtu.be/2Il2VR-JgFs