Passenger ferry service is provided by Jet Express from downtown Port Clinton on the dock at Jefferson street directly to downtown Put-in-Bay on South bass Island. Three jet-powered catamaran ferry boats, the Jet Express I, the Jet Express II and Jet Express III provide you with a quick way to the bay!! The Jet Dock is located just a short stroll across the park from the Roundhouse Bar.

The Miller Boat Line provides service for passengers and vehicles from the tip of Catawba Island. Miller's auto-passenger ferries make the voyage from Catawba to South Bass Island in under 20 minutes. Miller Boat Line also offers passenger and vehicle service to Middle Bass Island.