No, It's not necessarily lawful to fly to Turks and Caicos with weed. Lots of individuals have productively flown there with edibles of their carry-on, but again, this is against the law, so do this at your individual threat. Hurricanes and tropical depressions often act as a flush for waterways https://garrettfhcws.wikikali.com/763843/facts_about_finding_weed_in_turks_and_caicos_revealed