Apparently that means the route goes inland after Good Hart? DALMAC follows M119 to Cross Village, then takes Lake Shore Drive, north through the dunes area, and ends up on Lakeview, which becomes Gill Rd. Inland is hillier than along the shore. Depending on which roads you're on, it could get fairly challenging. Same advice holds, though. Expect hills to make you go slower. Downshift and survive!