This is a hidden little gem.  The park is about a mile off of Highway 5  near Manteca in a very small town called Lathrop.  We first discovered it when we were traveling from Sacramento to San Jose and needed to find a dump station.   It was listed on our Streets & Trips program so we gave it a try.  Very nice, lots of shady spots, spacious sites – even two pull through sites.  There are only 26 sites but there’s always been availability when we pass through.  This is our third visit and we’ll be back again.   The rate is $25 and it has full hookups.  Such a deal.  You can walk all around and there are stairs to get to the river.  You can’t go in the river (San Joaquin) but there’s a boat launch nearby and you can walk along the  berm and see the water and the wildlife.  It’s great!