June 7-Aug. 31, Thursdays, Fridays, Saturdays, 7:15 p.m. Varying prices. 60 Rowes Wharf. rockonconcerts.com.
Casting off from Rowes Wharf, the Rock On! cruises also offer an eclectic mix of hits on the harbor, including one-man-band Zach Deputy (June 22), dance party band the Van Burens (June 23), U2 tribute act the Joshua Tree (July 6), Boston modern-rock favorites Dear Leader (July 13), and punk rockers the Ducky Boys (pictured, Aug. 25).