The area is near the international bridge and you certainly can't miss it. All you need to do is look up, look wayyyyy up!
The cache is a square, 3x3 container with some tradeables as well as a log, pencil and pencil sharpener. Please be sure that you don't overload the container so that the lid closes properly.
Vg'f va gur gerrf naq ybj gb gur tebhaq.