Courtesy Anthony McWilliamsAnthony McWilliams has been chronicling his travels on the 9-month Ultimate World Cruise on TikTok.McWilliams got off the ship in Grenada and won't be able to reboard until the ship docks in Uruguay.Brazilian port law does not allow travelers to disembark and rejoin a cruise at a different port. Despite all the TikTok fervor, there have been very few actual moments of drama from the 9-month Ultimate World Cruise excur…