I've been to Sterling Point many times. I always take my boat in because there is a dock, but one time I saw people there with no boat and when they left, they wandered into the woods, so I assume there is some way to hike in and out. There are picnic tables and fire pits, but no bathrooms or garbage collection. There are a few floating bathrooms around on the lake, but you would be better off using the treeline. Most times I've been by, it has been vacant, but a few times, it has been crowded. If it is full, you can easily find another spot to camp along the banks of the lake. It is a beautiful area and reasonably isolated at night depending on whether or not there are other campers in the area.