I am a member of Thousand Trails and that being said this is one of my favorite TT spots in California. Family friendly, great little Lake for swimming, kayaking, paddle boarding. RV sites have partial hook ups.  Thousand Trails does not reserve campsites so it can be quite a scene to find a site especially in the summer. Only one dump station was open (there are 3) so waited 30 + minutes to dump, hopefully management is working on that… they do offer a honey wagon service for $40.00 available 2 times a week.

Great lake for swimming and water play. Too warm for trout and too small for kayaks/SUPs. But it does make a beautiful backdrop. 
The park is rather spread out, so a bicycle/ebike is a plus. And if you mountain bike, there's some decent trails close by to ride. There's also legit fishing lakes within about a 20 minute radius. 
RV sites are mostly electric and water only, and many aren't anywhere near level. Nonetheless, I loved the place and will definitely go back. If you prefer parking lot RV parks though, go somewhere else.

We were so thrilled to find this clean, family-friendly resort with its own (warm!) little lake in the high sierras. To top it off, everyone here appears to be very friendly and generous (loaning our group their inflatables).

But our group’s collective joy was short lived after we were beseeched with mosquitos. We spent the weekend trying to figure out why this camp is more bug-ridden than others and concluded that it is likely due to limited air currents through this secluded part of the forest.

To be fair, other camp groups appear to have a perfectly good time despite being eaten alive. Unfortunately, our group was driven indoors and spent the weekend at other parts of Lake Tahoe.

Snowflower sits just off I-80, it’s owned by Thousand Trails. With the popularity of RV camping, this campground can get busy in the summer months. It is closed in the winter due to snow. There is a small lake that is good for kayaking and paddle boarding. There are sites with partial hookups (electric and water). Lake Tahoe is just 30 minutes west.

I didn’t see not 1 Beautiful area Nice place to fish.

we found there to be a lot of rules at this campground such as no fires, however there is a community fire pit. No driving over 5 MPH, no charcoal grills or smokers, only electric and propane grills. They are also very serious about the 11pm quiet time.

Aside from all the rules this was a very clean, family and pet friendly campground. Very clean bathrooms with showers!! There are a few lakes that are very nice for fishing and kayaking. Nice calm water for a leisurely SUP experience.