Unless
YOU are the main man, i.e. not guiding for an outfitter or such and can find a way to fill many days with clients, guiding is a low-paying way to spent a lot of hours outdoors.
I spent a couple years making money as a guide in different ways when I lived at Vallecito Lake in Colorado in the mid-70s. It was a way to supplement the income from our resort that was a basically a 3-month long producer, but it was never really on a full-time basis.
In the fall months I worked for an outfitter, guiding deer & elk hunters. Then in late spring to early fall, we took folks on summer week-long horseback trips into the Weminuche Wilderness for fishing or whatever met their fancy. I was paid by the day & with tips for both the hunting/fishing gigs.
When I wasn't in the high country, I took out fishermen on the lake to chase northern pike by the full or half day. This was my own side business, so any money I made was mine, and a one-day outing usually earned me more than a week guiding for the outfitter.
But...none of the above guiding gigs earned enough to take care of all the bills & raise three kids. I was also writing part-time, and after the hunting seasons, during the colder months of Dec., Jan., Feb., Mar. & Apr., I hammered nails as a finish carpenter, which was the best paying work of all. And my wife also worked full-time jobs during the winter months, and part-time ones during the summer when our resort was open.
So I guess the moral of the story is: You'd better have some fall-back money and plan for some lean years until you can get established.