Bay City Boat Lines provides narrated tours and private charter service aboard the excursion vessels Princess Wenonah and Islander. Free rides are offered weekdays at 10:00 a.m. during the summer season. Dinner cruises and special events are offered periodically and the vessels are available for private charters. The Princess and Islander depart from their dock on the Middlegrounds Island just South of M-84. Purchase tickets through Bay City Boat Lines' website or Brown Paper Tickets.