The general idea.

Feb 17: Portland -> Buenos Aires, Argentina
Feb 18-20: Buenos Aires
Feb 21: BA to Ushuaia, Argentina (Antarctica trip starts from here)
Feb 22-Mar 13: Antarctica trip (Falkland Islands, South Georgia, Antarctic peninsula)
Mar 14-27: Manta, Ecuador (Spanish/surfing immersion program)
Mar 28-Apr 3: TBD :)
Apr 4-11: the Galapagos Islands
Apr 12-17: en route to Lima, Peru, TBD :)
Apr 18: Lima to Cusco, Peru to meet up with Viki for...
Apr 19-May 4: Cusco (trekking the Inca Trail, Machu Picchu, rafting)
May 5-May 20(ish): TBD :)
May 20-Jun 1: likely Salta, Argentina -> Iguazu Falls -> Buenos Aires with Kim, but TBD :)
Jun 2: Portland, Oregon, USA

worldly possessions for the next 3.5 months