As near as I can tell, the official name of this body of water is in fact "Duck Pond" (replete with capital letters), as opposed to something like "the duck pond." Evidence of this can be found on page 5 of a recent city newsletter.
A while back, the banks along a creek flowing into Duck Pond eroded, turning Duck Pond into what the city described as "a mud pit" that polluted a nearby lake. Fortunately, the city recently dredged Duck Pond so you can enjoy it in its newfound pristine splendor.
My interest in Duck Pond stems from the fact that I grew up about half a mile away from it. When I was a toddler, I fell into Duck Pond and was rescued by my mom -- a no doubt highly unpleasant experience for her.
This probably qualifies as a "park and grab," so watch out for members of the public. Please replace the cache exactly as found. Original contents of the cache include various trinkets, some of them duck-related. Thank you to Bam2 and BatManuel for helping me find the hiding spot.
Don't forget to say hi to the ducks!