As the engine stirs to life and the vessel floats away from port, Marine-12 doesn’t just yawn and stretch its parts. Instead, it lets out a roar, its two massive diesel engines sounding off yet another departure. The retired military patrol boat was once a command and control vessel during Vietnam, and has since traded in its war paint and oversized army helmet for more favorable features—namely, an on-board frozen-drink machine and booming sound system. Marine-12’s modern incarnation makes it the ideal host for Island Party Entertainment’s cruises, which coast up and down St. John’s River and soak up sunsets at Doctor's Lake. Cruises depart from Amity Marina, which features a clubhouse, bar, and pool area.
