This beautiful lakeside camping spot is perfect for a weekend at Lake Quinault! There are plenty of spots and although it probably fills up in the summer it would appear you can reserve the sites (saw notes on sites). 

There is water as well as at least one vault toilet that I saw, you are pretty close to the mercantile in Quinault so if you forget anything you can make a quick drive down the road for necessities. There's also a boat launch and a pretty great beach down towards the water (see my video) that gets you right out onto the lake.

IT's $25 a night here which is pretty fair for lakeside camping with basically all the things you need for a great time out on Lake Quinault. Also, check out the rainforest trail to see some spectacular old growth or drive upriver to do some pretty epic day hikes!