Take part in Bike Fridays

Follow up one of those Downtown Crossing block parties with an open air commute to work during one of this summer’s three “Bike Fridays.” Convoys of bikers will meet up at various locations around the city at 6:45 a.m. and will arrive at Boston City Hall around 8:30 a.m. for a free breakfast and bike expo featuring tons of gear from local bike shops. Free to attend.