NOTE: there are some camping closures in this area. Read here for more details.
The Lake Ediza Junction has several great spots to camp. Try to find a spot that will have long afternoon sun as some spots will fall under the shadow of the ridge to the west. There are some sunny campsites along the creek so try and snag one of those.
If you are planning on taking photos on your trek, Shadow Creek is a favorite for photographers.
Find out everything you need to know about your John Muir Trip at Bearfoot Theory.