Miller Boat Line Schedule Changes in Place Put-in-Bay Daily 4 years ago Miller Boat Line announces schedule changes for Middle Bass and South Bass Islands operations. The Middle Bass Island schedule is active as of today.The Put-in-Bay schedule change begins on 12 September. Click to enlarge! Summer Arrives for Miller Boat Line SchedulesDate12 May 2017In relation toLegacy ReportsMiller Boat Line Revised Put-in-Bay Schedule Goes Into Effect on FridayDate27 April 2017In relation toLegacy ReportsThanksgiving Miller Boat Line Schedules for Put-in-Bay and Middle Bass IslandDate20 November 2016In relation toLegacy Reports