The cache is simple: two bottles are glued shut, one is not. This is not a show of force or brute strength. If the bottle doesn't open with minimal force, you have a glued bottle, move on. The bottles are NOT frozen, they are GLUED. I've already had all my bottles ruined once, I don't want them ruined again. I do this for your fun, please be respectful of my cache containers.
While unlikely that someone would do this, I felt I should mention: do not cut through this field to the North if you plan to go after the caches there. Doing so would be cutting through a piece of private property.