Thanks for the suggestions everyone. I haven't changed much since the original post, but what I have done is started walking fields a lot. We have had 5 inches of rain in the last 10 days and things are getting really wet. Put my mud boots on and started checking my fields. Doesn't take long to wear you out doing that! I've also started swimming when I get the chance. Nothing too drastic as it is not a big pool, but it does work my lungs and shoulders pretty good. When it starts to dry up I'll get into a running regime and start lifting some weights too. September 1 will come all too soon!