Casa Rio - first restaurant on the River Walk and social-media staple

Casa Rio opened along the San Antonio River Walk in 1946 and is commonly cited as the first restaurant to operate on the River Walk; its colorful riverside dining and historic presence make it a frequent subject of travel and food photography. Images of its patio tables and riverside setting are widely shared in social media posts about San Antonio dining and River Walk experiences. The restaurant's longstanding association with the River Walk contributes to its visibility in online coverage of the city.