boardwalk

thumb|Atlantic City, New Jersey boardwalk, as seen from [[Caesars Atlantic City, opened in 1870, as the first U.S. boardwalk. At long, it is also one of the world's longest, busiest, and oldest boardwalks. New Jersey is home to the world's highest concentration of boardwalks.|alt=Many people walking on a boardwalk at the beach in Atlantic City, New Jersey]]

A boardwalk (alternatively board walk, boarded path, or promenade) is an elevated footpath, walkway, or causeway typically built with wooden planks, which functions as a type of low water bridge or small viaduct that enables pedestrians to better cross wet, muddy or marshy lands. Such timber trackways have existed since at least Neolithic times.