just as the guy above me said. in particular, on the west of the bridge (king ave. or whatever it is) there are two tiiiny segments of piers, and a larger pier between them. the right "tiny" pier is where you find the key for the ribbon quest. then there's the larger pier, where you can go almost all the way north, but before the northern end, check on the west (left) side to find a bench. it looks pretty much like any other bench, but it's special and you can pour the urn on it.
in any case the code is fixed, so if you know the code and the combination (changes depending on difficulty) you can avoid this entirely.
