My hubby and self will be going down to San Antonio for the week of 3/18 till we get finished with a convention. We have never been here ( only got to drive thru TX. from Fla.) and are really looking forward to this trip. Questions? Should we drive or fly from Denver? How long? We need a lovely place to stay for the week. Riverwalk area? Suggestions are always greatly appreciated. Need local advice. Also best restaurant? Love Texmex or totally authentic.