Operators of a "high-speed sightseeing cruise" attraction planned for Baltimore's harbor have pushed back the start of their service from April 3 to sometime later that month.

Featuring a speedboat named Seadog III and described as "history tour meets thrill ride," the attraction will take up to 120 passengers at a time on a narrated tour from Baltimore's Inner Harbor to the Key Bridge and back, reaching speeds of up to 32 knots in the outer harbor.

Steve Dutcher, vice president and general manager of Entertainment Cruises, said the company needs a little more time to get ready and will announce start dates and other details about its service as soon as it can.