Well Im 6 months out and I only really swim 2 to 3 times a week for about 45 mins. I also walk 3 to 5 miles once or twice a week. It doesn't sound much really when others are at the gym 5 days a week! I have a very active job and work 3 or 4 days a week 12 hour shifts, so that takes up a lot of energy. I may be 7 stone down, but I'm still not a gym bunny - wish I was, but it it is what it is. You have to be able to incorpoate exercise in to your life easily, and you have to enjoy it.