John S.: Downtown San Antonio is very crowded like most large cities. Trying to locate a space to park the class-C will be difficult. You are better off staying at a campground which has a shuttle service or a city bus stopping at the campground. Just have to call RV parks until you find this service. In regards to visiting the Riverwalk and the Alamo, they are within a few city blocks of each location. You can walk to most of the interesting places in the downtown area. I recommend you contact the San Antonio Chamber of Commerce for a visitors packet. They publish an excellent tourism book and it is free. You can see most of the tourist sites in one active day. Enjoy!
