The second day of my trekking adventure with my elder son (back in Dec 2018) involved hiking to the Grey Glacier and back to Paine Grande. Almost 30 km round trip. It is the longest hike I've ever taken to this day and I was crazy enough to have my son with me.. No regrets there, he just loved it and the sense of accomplishment of such feat with your son is indescribable! #greyglacier #TorresDelPaine #tdp #trekking #hiking #PaineGrande #refugiogrey