San Antonio is known for two landmarks; the Alamo and the Riverwalk. As with many riparian zones, it is a few degrees cooler by the river. There are also many shops and restaurants. On the plus side, it is very pleasant to stroll along the river especially during the warmer weather. On the negative side, it can be very crowded. You will likely be jostled by joggers and other exercise enthusiasts. Nonetheless, this is a major tourist attraction that should be visited-once.