Perfect Duluth Day

Running race through the tunnels on I-35

Saturday, Sept. 14, will be the inaugural Tunnel 10K running race, starting at Fifth Avenue West and heading east on the freeway through the tunnels. At the 5K point you will turn around and finish where you started. This race is part of the Northshore Inline Marathon series of races. There is also a half-marathon running event, a half-marathon skating event, a 26.2 mile roller-skiing marathon and, of course, the race that made us famous, the 26.2-mile Northshore Inline Marathon.