The city’s most famous cardio session returns for 2018, with the streets huffing and puffing as runners raise funds for a variety of causes. Join in the madness—which includes routes in Dartmouth—or cheer from the sidelines, and don’t miss the Blue Nose Block Fest, a block party taking over Argyle Street from 6:30-9pm with live music and all-ages fun. Still not enough nosing? The Discovery Centre welcomes you to join its team or contribute to it.