I agree the road out is pretty scary I don't advise trailers but I have seen them while driving in. It is one lane and you must pull out for opposing traffic. But definitely one of my most favorite places in the Sierras. The views are amazing, I recommend giving yourself extra time to stop and get out for the views a few times on the way in. 

   Once in the campground/resort area there are two separate loops to camp in as well as cabins to rent and a small dispersed camping area there is also a general store, bath house, and small Cafe that are all seasonal since the road is closed most of the year. So open and close dates vary depending on snow. You can get firewood, drinking water at the store but it can be a little pricey, so I recommend bringing your own. The baths/showers are usually included for anyone paying for a campsite, but this may have changed. It is very cheap for day use persons to use the showers though. The sites are all very nice and surprisingly private though some are pretty close together. All provide a firepit, table, bear box, and parking space. I love that there are bear boxes at such a remote place! There are vault tiolets and dumpsters for trash. The river runs along one side of the campsites so about half of the sites are on the river. Bring extra bugspray for these sites as you are close to the water. 

     Most important if you made it this far reading 😅😂 there are multiple NATURAL HOT SPRINGS!! There are several different pools located across the river from the campgrounds. They are all over the hillside and range in temperature from lukewarm to bath water to Hot. They also pump the natural mineral water to the bathhouse for the showers! The springs are the main reason to come out and camp. There are also tons of hiking trails and other lakes in the area including 2 thermal lakes and tons of breathtaking views. I highly recommend this place. 🏞🏕

Also: I have not personally stayed in the cabins or dispersed camping area only the paid sites along the river, but I have been here several times and have seen them. There is also a corral area for horses so I'm not sure if that qualifies it as an equestrian camp but there is a spot for the horses.