I was in Wisconsin in May and there were some caches placed in trees over a river. You either waded to the tree or used a kayak/boat to get to the tree, then had to scale up about 20 feet to get to the cache.
Hey, I found the cache. It was right there, in plain sight, a match container hanging from a small limb.
As I only had one pair of shoes I didn't wade out to the tree. No signed log. No smiley for me.