I used to spend hours in the woods selecting and cutting hundreds of small trees, which I carved into walking sticks that I sold at craft shows and flea markets. Apple picker, landscaper and lumberman are also part of my income history, along with several other outdoor jobs and businesses. In my book 101 Weird Ways to Make Money I have a section on making money outdoors, with the focus on the more unusual occupations. Here are some of the ways covered there that can get you out in the sun and fresh air (and rain and snow) while you make a living.
Make Money Outdoors