Dunno. This time of year, at my former marina, you could sail around the adjacent cow pasture and woodland. Late summer, on the other hand, you were lucky to get out of your own slip at low tide. Not that there were very many navigation aids at all. Sort of an extreme local knowledge sort of deal.
For the last few weeks, the 10:45 “notice to mariners” broadcast has been full of buoys missing, buoys found, buoys kept in the warehouse until things settle down. (And the squeaky-voiced children the CG has doing the broadcast have no idea how to pronounce the names of the places, so you’d better be up on your light-list numbers. None of them has been even close, for example, on either “Willamette” or “Sacajawea” so far.) And this isn’t even a particularly big spring runoff. Although most of the ramps at the marina are decidedly horizontal at the moment.