I'm always amazed how some respondents completely ignore the specifics in a request for suggestions. The OP would like destination suggestions for "a short tour for this winter somewhere in the South", and January is mentioned. Europe, Chile, the southern hemisphere? Really, people? Europe is fine, but not in January, nor for a "short" tour. Chile is fine, but again, why would someone want to fly there or anywhere in the southern hemisphere for a "short" tour when they specifically ask for destinations in the southern USA?