Just THE Best! I spent 3 days with Gaston and each day was special. Gaston understood immediately what I was looking for regarding hikes and sights and with his vast knowledge of local flora and fauna, he made each day magical. We had great conversations and I felt like spending the days with a friend, instead a paid guide. I highly recommend Gaston as a guide. I look forward to seeing him again when I return to Ushuaia.