BOSTON (AP) — Throngs of green-clad, shamrock-festooned revelers filled the streets of America’s most Irish big city on Sunday for the South Boston St. Patrick’s Day parade.

Green, white and orange confetti — the national colors of the Emerald Isle — rained down along parts of the 3.5-mile (5.6-kilometer) route. Parade floats and marchers wound through the neighborhood of South Boston, a center of Irish-American heritage in a city where more than 1 in every 5 people are of Irish descent.

Check the photos from last year’s event here.