I used a 60 Day Insanity Workout called "Duck Season, using only a Kayak".
I hunted every day, before or after work, making my rounds in lakes and canals and lost nearly 20lbs in the process by cutting down on Soda and Sports Drinks. It was a Grind, but it was well worth it. My freezer is packed, and I feel great!
It won't help for this season, but think about it for next year