St. Ignace, Mich. (AP) --
Michigan Department of Transportation and the Mackinac Bridge Authority (MBA) wants you to share your Labor Day Mackinac Bridge Walk photos and videos on social media sites.
One lucky poster will be selected at random to tour the top of the Mackinac Bridge.
This is the second year that MDOT and the MBA have held this promotion.
Post your memories of walking the bridge this year or previous years through September 9 on Instagram and Twitter. Use #MightyMacWalk13.
Posts on Facebook will not be considered.
The random winner in 2012 was Michael Gronseth of Negaunee.