A friend and I are planning a visit to BA and Argentina in Oct/Nov. We are generally well traveled and independent travelers. WE're planning on doing our own thing in BA. We then want to continue on to Patagonia for a week or so, and do some more "adventure travel" (eg trekking/hiking). Wondering whether we should plan and book our own individual travel and activities or whether we're better off booking an organised tour of Patagonia which is guided. And in that case can anyone recommend a Patagonia adventure tour company.