The Riviera Beach Flea Market May Day is the second of a series of monthly Flea Market events full of fun, shopping and entertainment in the beautiful City of Riviera Beach. The Riviera Beach Flea Market was established to raise funds for Riviera Beach-based nonprofits, including Thrive For A Change and the RBHA Housing Fund. The May Day Flea Market event will be held from 7 a.m. to 7 p.m. on Saturday, May 21 on the 15-acre site of the Riviera Beach Housing Authority, located on Congress Avenue between Blue Heron and MLK Boulevards. The address is 2014 W. 17th Court.