BLUFFTON, S.C. (WSAV) – A dolphin named Lucky is once again swimming free in the May River thanks to a coordinated rescue by the Bluffton Township Fire District (BTFD), the Lowcountry Marine Mammal Network (LMMN) and local Bluffton residents.Saturday, the female dolphin was found stranded in a shallow tidal lagoon inside the Hampton Lake community. The dolphin, known to researchers at the University of South Carolina Beaufort (USCB) who track area dolphins, was recognized by distinctive markings as “Lucky” — a name she lived up to during the dramatic rescue.Lucky may have swum into the lagoon through a culvert connecting to the May River during Thursday’s heavy rains and high tides. As the tide receded, she became trapped in shallow waters just 2 to 3 feet deep. A passerby noticed the distressed dolphin and the Lowcountry Marine Mammal Network was contacted. The organization is federally authorized to respond to marine mammals in South Carolina by the National Marine Fisheries…..