Port Sanilac Marina was extremely helpful. Had a mechanical issue on my 38 foot sailboat while pushing the boat to Port Huron for the Mackinac Race. Moored for the evening as it was a National Holiday. The staff on hand took all of my information and said the would have the service department call me as soon as possible…..they called the next morning and by noon my boat was repaired. Was very impressed with all aspects of my interactions from the counter staff to the service department to the mechanic.. great people!!!!!!!!