Passage Creek features clear, clean water, relatively unfertilized by agricultural run-off. The swim hole at the campground was excellent, with a great jumping log as pictured below. There were a few other families there, but it was not overly crowded. I don't know if the 50% chance of T-storms was lowering turnout, but the camp host said the place was pretty full by his standards. There was still a bunch of sites available when we got there on Saturday evening.
We did see some medium-smallish trout and sunnies swimming around - the creek is stocked - and will probably get a fishing license next time we go. For a VA resident over, its $23/year for a fishing license, plus $4/year for a National Forest Stamp. The VA license is $47 for nonresidents.
Just after entering the National Forest, lookout for some cliffs on the right, and then park on the right at the large lot in 200 yards. There is also a small pull-off area opposite the cliffs that I used to drop off the people and gear. May Joy and the kids played in the water while I hung a top-rope on I Love Big Jugs, a 60' climb that starts off as 5.5, and ends with a steep, pumpy 5.8 section. This area is known as the Roadside Crag/Talking Headwall, and is a very family friendly place to climb. There is another climbing area about an hour up the hill called Buzzard Rocks, which I did not check out yet.
I liked the campground. We took site #2, next to the host's RV and the bathroom, which includes 4 showers with private, lockable entrances. There are 30+ sites, and they have good privacy, thanks to the dense vegetation, which included lots of black haw viburnums that were loaded with yet-green berries. Poison ivy is lush though, so you need to be wary, especially at night and with kids.
We did not find any ticks throughout our trip; however, we did not do much bush-wacking either. No mosquitoes. There were some tiny biting gnats that were a minor nuisance on legs and arms, although the kids never complained.