Silver lake state park is a lot of fun.
You need to have a pole with a flag. I think it has to hit 10' tall. You can buy some there at the local shop if you need. Buy your state park pass, lower you tire pressure and have some fun. Give test hill a try ( first dune on the left) after you get a little more comfortable with driving on the sand. Watch people first to see how the do it.
I have not taken my rover there, but dirt bikes and some other trucks have been a lot of fun. I wonder how the front swivel housing will hold up.