Choose your site carefully
We took the family up here for a long weekend. The weather wuickly made this an overnight stay instead, as the rain was relentless. Our site (#6) was on a slope, and there was the telltale sign of stormwater runoff tracks running through the middle. We pitched our tents to the left and the right, which worked out well because the next day we had a stream running through our site. The hiking trails were extremely wet and muddy (even before the rain) so we didn't get too explore very much.
They have great firewood here - kiiln dried cedar for $7 a bundle! And the restrooms were fairly clean. The boat launch area looked great, but we didn't get our kayaks in due to the weather.
Before we packed up, we took advantage of a break in the rain to get photos of as many sites as we could. Hopefully they'll come in handy for future campers. These were all taken after several hours of heavy rain, so the photos should give you a good idea of what sites have drainage issues.