BI is the 2009 distinction placed on our annual Belle Isle caches for this year. By doing this it should work well for identifying caches for those who are paperless caching. These caches will be active for 1 year only.
You will not want to tough anything more than the cache here. Yes, the cache area is surrounded by Poison Ivy. You will not have to touch any while you are here as the cache should be a very quick and easy find. For those that do not know what poison ivy looks like at the different times of the year this is a perfect example.