If you can afford the extra travel time drive around to salvadore rosa. Nogoa River is awesome. We camped there in school holidays and had the place to our self. For little kids the river is excellent. To shallow for proper swimming but perfect to sit in with a cold beer or for the kids to play. There is a spot were two rivers meet both are crystal clear over a perfect white sand bottom. One is warm and one is cold so you can optimise your temperature by choosing the perfect spot to sit. Enough there to occupy three or four lazy days.