Our tour with Gaston was better than we could have ever hoped! We had been to Ushuaia before and enjoyed the national park and other touristy spots, but Gaston took us to all his favorite places instead. We enjoyed even more spectacular scenery and didn't have to share it with thousands of cruise-ship passengers. Gaston is extremely knowledgeable, friendly, and a true professional. From the first moment to the last, he looked for ways to make us comfortable, and to personalize the experience for our family. If we're ever back in Ushuaia, we'll definitely book a tour with Gaston again.