This past weekend marked the longest day of the year–and also the wildest. Sea creatures of all stripes and scales glittered under the Coney Island sun on Saturday as the 37th annual Mermaid Parade made its way down Surf Avenue, with Arlo and Nora Guthrie serving as King and Queen Neptune. Watch our video to see the seahorses, pirates, and the utterly unclassifiable.

Video by Roberto Bosoms.