Thirty floats and some 60 groups of costumed friends rolled, marched, twirled, and otherwise made their way down Commercial Street on Thursday, Aug. 18 in the first real live Carnival parade since 2019. The Provincetown Business Guild’s theme of Monsters, Myths & Legends was interpreted imaginatively by all kinds of satyrs, swamp things, and mermaids. It seemed that everyone who’s at all legendary was there, from Moby Dick to Little Red Riding Hood to Minnie Pearl.