Im going to start of this summary by stating that anybody attempting this cache does so entirely at there own risk.
Are you fed up of picking caches out of hedges and doing easy drive by caches if so then this is the cache for you. This cache will require a certain amount of dexterity,determination oh and a head for heights. Good look and remember if you doubt your ablity to retrieve the cache take a deep breath and think how much does a smiley mean to me.