How long do caches exist?
It all depends on the location of the cache and its impact on the environment and the surrounding areas. Caches could be permanent, or temporary. It’s up to the cache owner to periodically inspect the cache and the area to ensure that impact is minimal, if not nonexistent. When you find a cache, it’s always a good idea to let the cache owner know the condition as well. Periodically, Geocaching.com will review each cache to ensure that everything is still current. We cannot guarantee that a cache will exist at any given time, but we’ll do our best to ensure the list is as current as possible. If you do find that a cache is missing/defaced, please let the cache owner know as soon as possible!