Tree of Heaven campground is located about 10 miles west of Interstate 5, on a bend in the Klamath River. The closest town for supplies is Yreka, and they should have just about everything you could think of there. The entire campground and day use area are located right on the Klamath River, however there is no direct river access from any of the campsites. You need to walk upstream to find the river access. There is also a trail that starts at campsite 19 that goes downstream for about a half mile, but there isn't river access from there either. The river itself is great to swim, float, or fish in. A number of groups drove upstream a couple miles and floated back down to the campground. You can also float downstream a couple of miles to a haul out point and get a ride back. There is enough room at the day use area to put in kayaks as well. Campsite 19 was great. It was at the end of the loop and had 3 flat areas that were terraced into the hillside. It would be great if you were setting up multiple tents, so you weren't right on top of each other. The restrooms were very clean, and there was drinking water all through the campground. The host sells firewood and rented inner tubes, but I imagine the inner tube thing would vary depending on the camp host at the time. No showers, but with the river right there, you don't really need any. There is some poison oak in the area, and we spotted a rattlesnake, so keep your eye out with pets or kids. As you can see in the photos below, it was really smokey from fires in the area during our visit, but I would love to go back again when it is clear. There is no light pollution nearby so I bet the star gazing would be fantastic.