PORTLAND — On Sunday, Aug. 8, popular folk trio Dave Rowe Trio will take its chantey songs to the high seas on the good ship Casablanca on a concert cruise of Casco Bay.

The cruise, subtitled “The Three Hour Tour,” referencing the ill-fated fictional final trip of the S.S. Minnow from the TV sitcom “Gilligan’s Island,” will leave Custom House Wharf at 2 p.m.

Tickets, $20, are available by phone, toll-free 866-655-7171, and at the Comedy Connection box office at Custom House Wharf. For more information, visit www.daverowemusic.com.