There is no cache at this location.
You will need to find "Down by the Riverside" caches 1, 2 and 3 to discover this cryptic puzzle.
Update: I have added a hint and have also renumbered the three other caches so the order of clues are more logical for finding the next bit of the puzzle. You will need an internet connection to continue with the puzzle; the bits of info in the caches are not enough to solve it.
Down by the Riverside #1
Down by the Riverside #2
Down by the Riverside #3
You can check the location for this puzzle on GeoChecker.com. Feel free to PM me if you get really stuck.
NB. The hint pretty much gives you the direct solution for the first part of the puzzle, so avoid it unless you get really stuck. I've done this because it relies on a certain bit of knowledge that I don't want to be a hurdle for people solving the rest of the puzzle :). Though the few finds didn't have this to help them..!