The Detroit News. The Detroit News Summer travel is expected to increase 4 percent and spending 6 percent. Local sites, such as Greenfield Village, are already drawing visitors.
Tourism is the second-largest industry in the state, only behind manufacturing.
Holland, about 200 miles from Detroit, takes about three hours to get to via Interstate 94 or I-96. But it could a little bit. But it's not going to affect overall spending. Gas is a small portion of cost overall. Norma Bosher doesn't plan to skip her annual summer excursion to Gaylord with her husband this summer.