I am planning a return trip from Sydney Australia.  Fly via Santiago de Chile to a hotel in Torres del Paine National Park.  Group (for safety) day hikes in the park.  Overland to Ushuaia and join a return cruise + hike to South Atlantic islands.  Fly to Valparaiso and join a one way cruise (twin share cabin already booked) via South Pacific islands to Sydney.  I have spent most of my life leading other peoples' kids on excursions.  Adventures have included rowing, sailing, scuba diving, ski touring, bicycle touring, and now day bushwalks with a caravan instead of a tent.  Ask me for the link to my Google drive which tells you lots more.  What's wrong with me?  I guess that will depend on your bias!  Your input to this program is welcome.