One of the claims of the challenge is that exercising outdoors can help you burn up to a fifth more calories. Just five minutes worth of outdoor exercise every day can immediately boost your mood and self-esteem too. So you won't just shift those post-Christmas pounds but you'll beat the January blues too.
The 31-day plan has been devised by outdoor exercise specialists Eco Fitness, and is designed to help you kick start 2011 feeling energised and invigorated, rather than feeling bloated and with a massive hangover.
Outdoor workouts help you burn up to 20% more calories because your body has to work harder, thanks to all the natural, uneven surfaces you'll encounter (which also helps boost your balance and core strength). Being outdoors might also increase your levels of vitamin D - well, if it's a sunny day you may absorb some sunlight in your skin. And that not only helps improve your mood but keeps your bones strong too.
The plan can be followed in any outdoor space (even your back garden if you're lucky enough to have one big enough) and includes instructions on warming up and cooling down, along with a walking, jogging or running challenge for every day from January 1-31st.
Start now by downloading the plan from the National Trust website.