MACKINAC ISLAND — Grand Hotel is launching a week-long digital photo contest, asking guests to post pictures from the 125th anniversary season to Instagram.

The images can be posted using hashtag #grandhotel125. The Grand Hotel Instagram account can be found under @grandhotelmichigan.

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Whoever posts the most picturesque memory from the 125th anniversary season will win a stay at Grand Hotel for two people for the 126th birthday on July 10, 2013.  The competition closes on Oct. 30.

“One of the most rewarding experiences as the owner of Grand Hotel is when one of our guests sends us a picture of their stay or posts images to our social media sites,” said R.D. Dan Musser III, Grand Hotel president. “This Instagram contests gives us the opportunity to capture our historic 125th anniversary season and offer a thank you to our guests for sharing their memories.”

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Grand Hotel, a national historic landmark, celebrated its 125th birthday on July 10. There were many celebratory events during the week of the birthday and throughout the season, including serving a 125-foot birthday cake on its 660-foot Front Porch (the world’s longest porch), fireworks, and a grand celebration gala with three former Michigan governors.

The 385-room Grand Hotel opened on July 10, 1887 and is revered for preserving its historic charm and white-glove service, much due to its exceptional location on an island with no motorized vehicles. The hotel’s award-winning guest experience is also credited to the Musser family, who has owned and operated Grand Hotel for 79 years.

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Grand Hotel is listed again in 2012 as one of Travel & Leisure magazine’s Top 500 Hotels in the World and has been named a winner of the AAA Four Diamond Award for the 17th consecutive year.