The Borgen Street Bark and Ride is in a very public, conspicuous place. Way more so than your average urban cache. I'd worry for the cache if 75 people come looking for it. I'd at least see what the owner says.
There are a couple tough micros like Old Ferry Landing, Heinous Hide..., and Green Light at the Tides which I suspect might slow the caravan down a bit.
I haven't done any of the night caches on the list, so maybe I'll tag along after dinner to those.