Everyone is right about leaking radiator fluid being a common problem with the Gold Wing. I am not sure why they leak around the clamps but I have never had any issues with a pin hole in any of the radiator hoses.
Don't forget that there are also a bunch of coolant hose clamps located down under the gas tank. Because of their location, you would never see any evidence of a standing pool of anti-freeze unless the leak was so bad that it started spilling over the top of the rear of the engine, but you would certainly be able to small the anti-freeze when the bike was fully warmed up.
These clamps are a real hassle to get to but if you take your time, it is not really complicated. Fred Harmon suggests re-orienting the clamps so the screw heads are pointing up so they are easier to tighten if they ever need it again. From the factory when they tighten these clamps, they still have much of the upper bike to be assembled so they have access to the clamp tightening screws at a lower angle than you will. Fred also suggests that when you are done re-orienting the clamp screws, you place a thin rubber sheet over the clamps so their now upward facing screw heads and excess tabs do not rub a hole in your fuel tank. Thanks Fred.
There is another solution to this problem of which some will not approve, but I can attest that it works and does no harm to your Gold Wing. Add a little bit of Stop-Leak to your radiator (not the overflow tank). I had some really small leaks around some of my hose clamps that I could not track down and fix on my 1989 GL-1500 and it ran that way for over ten years until I sold it. Much of my riding was done two up towing a camping trailer (Kwik-Kamp) loaded down with a huge amount of camping gear...AND I RIDE IN THE DESERT! I never had it overheat even when the temps got around 110 degrees farenheit...although my personal body temperature was pegged at oh-my-god-this-is-way-too-hot-hot-hot!
I also used Stop-Leak to temporarily stop a leak when a bolt kicked up by a vehicle in front of me puched through the plastic radiator grill protector and put a hole in on of my radiator fins. It held for the 70 miles it took me to get home. I had to send the radiator to Utah to get welded and I lost the circulation in one tube, but it too held throughout the time I owned the bike.
Good luck tracking down your seeping leak.