Hardy Slough is in the Pierce National Wildlife Refuge adjacent to Beacon Rock State Park. It supports one of the last remaining runs of chum salmon on the Columbia River.
We canoed this slough in mid-afternoon, with cool temps, overcast skys and the possibility of rain.
We heard from another paddler that people were to stay out of this area, but no signs were posted regarding this, either at camp or along the water. "Refuge habitats include wetlands, Columbia River riparian corridor blocks, transitional woodlands from willows to cottonwood/ash to white oak to Douglas fir, improved pastures with some native grasses, and numerous creeks, seeps, and springs."
We got out of the canoe and climbed up over a rise, to check out the direction of the creek. We paddled until we hit the shallows and couldn't go any further.