This is a second iteration of a well received cache that ended up smashed in the woods a few years back. The gimmick is the same but the hide is a bit more robust with room for some swag.
You may need a tool of the trade (ToT) to open this but I won't say which one as a few different ones could work. More so with a little vigor you should be able to pop it open, just becareful that once you pull the pins you don't drop them!