Paseo del Rio—Spanish for "Passage of the River"—is the official name of San Antonio's iconic River Walk. This 2.5-mile (4 km) network of walkways along the San Antonio River winds through the heart of downtown, one story below street level.
After a devastating 1921 flood, architect Robert Hugman envisioned a flood bypass channel with commercial development at river level. The Works Progress Administration built the initial 1939-1941 section. HemisFair '68 expanded it. Continuous extensions now connect museums, hotels, convention center, and the Pearl District.
Go early morning or weekday for fewer crowds. Rio San Antonio Cruises (35-min narrated tours) orient you. Wear comfortable shoes—cobblestones and lots of walking. Nighttime: string lights create magical atmosphere.