I will be in San Antonio for a couple days in early October and I was wondering if cabs can be hailed on the street or if it is necessary to call for one when you need it? For example, I'll be staying at the Westin Riverwalk, but was considering going to Rosario's for dinner one night. I will be by myself, so will not want to walk back in the evening---do I need to call for a cab ahead of time or can i just grab one on the street?
Also, I am aware that some areas of the Riverwalk are more crowded than others. I think I'm of the impression that the area the Westin is in is less busy than some other places. If this is the case, how unbusy is it? Is it safe enough for a person alone to walk back there at night from other Riverwalk/Rivercenter Mall locations (I'm talking no later than 9-10pm).