This cache's location may not be as obvious as it sounds. You may very easily be led down the wrong path. Footing can be a little tricky, so watch your step, and don't rush.
The best place to park is at Antrim Park. The cache is in a clear plastic container with a red lid. The previous glass container has been removed, however it was broken, and there may still be some shards around the area, so be careful. Update 2017: The container was taken, so it is now a big ammo can. Enjoy!
This cache was originally placed by skyshark151, was taken over by xenophon10k, and has now been adopted by KBLAST. Thanks for the cache, skyshark, and thanks for keeping it going, xenophon10k!