I already told this story in another thread recently, but it's relevant...
Our ONE SPECIAL CACHE was not anything extraordinary (a magnetic nano attached to a little footbridge) or anywhere interesting (it was by a reservoir a few miles from where we live).
We'd attempted to find it a few times, but you know, I have a bit of a blind spot for nanos. Eventually I emailed the cache owner asking whether he could provide any additional hints and he kindly obliged.
We eventually got around to going for it on our wedding day. We walked away from our own wedding party to go caching. I walked through mud in heels and a floor-length dress. It was awesome. My hubby followed the new clue and put his hand right on the cache. We were over the moon to finally see it! At that point I realised I didn't have a pen so we reluctantly replaced it, vowing to come back and log it another day.
We returned after our honeymoon, pen in hand, only to discover that the cache had disappeared...