I'm 65 and preparing for my first Camino. I've worked out 'religiously' for the past 6 months and have made good progress. Doing mostly weight training for leg and torso strength and muscle endurance with occasional brisk walks. Six months ago I could walk 3 miles at a 16 min/mile pace. Now I can do 10 miles. This is on flatland. I don't think I'm ready yet, but when I can easily do 15 miles in 4 hours with 15 lbs (7 kg) on my back I think I'll feel ready. Does that sound about right to you experience folks? I want to experience most of the pain before the trip.