This should be a relatively quick C&D in a group of trees next to the Riviera Beach library. Look for a clear trail from the library's parking lot to Edwin Raynor Boulevard for easy access to the cache.
The county has a quick fact sheet about this library, including the fact that it will be demolished in summer 2020 to make room for a new building: https://www.aacpl.net/NewRiviera
There is definitely poison ivy in the vicinity, but you can get to the cache without being within arm's reach of it.
FTF honors go to sfcchaz, with an honorable mention to DecafSaysMoof for being a very, very close second!