I have long overlooked William O’Brien because I thought you had to drive a long way to get away. I was wrong! We planned this weekend with friends to camp in our matching teardrop trailers. We have never really camped with friends before, so the point was to just go, not to really travel far. We loved the trails. It was easy to takes hikes of varying lengths. There were so many different kinds of birds, and the wildflowers were blooming and ferns were unfurling -so many shades of green! This was the first really nice spring weather, and the Savanna Campground was quite full. Several people seemed to be there in groups, but we had no issues with noise. The pit toilets were cleaned and stocked with TP and sanitizer. The shower house needs some paint, but had been cleaned.
The river side of the park had been closed for months for construction, but had just opened two days before our stay. The Riverside campground appeared quite full, too.
All in all, I would visit again. There were lots of people, but it was easy to take a walk and get some space and some nature.