The 2013 Coney Island Mermaid Parade 111. The Mermaid Parade is the largest art parade in the nation. A celebration of ancient mythology and honky-tonk rituals of the seaside, it showcases over 1,500 creative individuals from all over the five boroughs and beyond, opening the summer with incredible art, entrepreneurial spirit and community pride. The parade highlights Coney Island Pageantry based on a century of many Coney parades, celebrates the artistic vision of the masses, and ensures that the summer season is a success by bringing hundreds of thousands of people to the amusement area in a single day.