Head to Mackinac Island for some horsing around during Island House Hotel’s opening weekend and coincidentally Kentucky Derby. What better place to cheer on your favorite thoroughbred than your favorite equine filled Island? This is your exclusive invitation to the 1852 Grill Room’s Kentucky Derby party serving hors d’oeurves from 5 until 7 p.m. Delicious Mint Julep special. Fantastic prizes for best dressed, biggest hat, and favorite fascinator.