Explore the underwater mysteries of Lake Michigan's shipwrecks aboard the SeaQuest II.
Double Action Dive Charters operates out of Hammond Marina in Indiana and Winthrop Harbor Yacht Club in Illinois, offering boat-based scuba diving to over 50 shipwrecks on Lake Michigan. The charter runs from the SeaQuest II, a custom-built vessel equipped with bench seating and built-in tank holders for giant stride entries. Divers can explore wrecks ranging from shallow Zone One sites at 20-60 feet deep to deeper technical dives reaching up to 300 feet. Popular sites include the Lady Elgin, Milwaukee, Louisville, and Car Ferry #2. The operator emphasizes that divers must bring their own equipment, including certification cards, regulators, BCDs, tanks, and exposure protection. Charters typically depart at 7:00 AM or 1:00 PM, with return times varying based on distance to the dive site. The business offers season passes for unlimited diving and encourages divers to purchase DAN insurance for medical evacuation coverage.
You'll book directly with the operator on their site. Prices, availability, payments, cancellations, and safety are handled entirely by the operator — verify details before paying. We may earn a commission if you book through this link, at no extra cost to you.