I'm currently on holiday in the Alps and going out everyday on steep walks. After the first couple of days which were difficult, I've discovered I LOVE getting out of breath and being challenged by the elevation, I get a high from it I think.
I really want to continue this exertion back home to continue to improve my fitness but am put off by going to the gym as they are so bloody boring. I live in a pretty flat part of the country, no real hills around me - how can I make getting fitter interesting when I'm back home?