St. Petersburg's lone cruise ship, the M/V Gruziya, set out for the last time Friday morning from the Port of St. Petersburg. The ship was headed to Montreal after docking in Jacksonville and elsewhere in the United States and Canada. It will return in October to the Port of Tampa, which has deeper channels. The cruise will start in good weather. Today's forecast is sunny, then partly cloudy with a 40 percent chance of afternoon thunderstorms.