San Antonio is a tourist city, mainly looking at the Alamo ruins, the San Antonio River and the Tower of America. The personal evaluation is this: the history of the United States determines that their so-called "battle" is not worth mentioning in the long history of China, even in Europe, it is "serse water". As for the river, you can cruise or walk. The former is explained (must pass the English customs), the latter saves the ferry ticket, spends an hour around, you can take pictures at any time, and enjoy the scenery. And the tower is really meaningless, the city is not big, let alone the amazing scenery, what to spend money to see?