The San Antonio Riverwalk, Texas United States

The San Antonio River Walk (also known as Paseo del Río) is a network of walkways along the banks of the San Antonio River, one story beneath the streets of Downtown San Antonio, Texas, USA. Lined by bars, shops and restaurants, the River Walk is an important part of the city's urban fabric and a tourist attraction in its own right. Today, the River Walk is an enormously successful special-case pedestrian street, one level down from the automobile street. The River Walk winds and loops under bridges as two parallel sidewalks lined with restaurants and shops, connecting the major tourist draws from the Alamo to Rivercenter Mall, to the Arneson River Theatre, to Marriage Island, to La Villita, to HemisFair Park, to the Tower Life Building, to the San Antonio Museum of Art, and the Pearl Brewery. During the annual springtime Fiesta San Antonio, the River Parade features flowery floats that float down the river.

The River Walk has inspired similar projects in other cities, such as the Little Sugar Creek Greenway in Charlotte, North Carolina, the Cherry Creek Greenway in Denver, Colorado, and the Santa Lucía Riverwalk in Monterrey, Mexico. After years of murmuring from locals and tourists about the water's quality, talk has also begun about cleaning up the water, although the muddy bottom and silt deposits make this difficult. The muddy bottom does receive an annual cleaning during the Mud Festival.