In the Yukon for example there are a few permits that need to be considered when visiting any Yukon Parks. Two relate directly to you visiting the Yukon on a Photo Workshop...
1. Commercial Recreation Park Permit - This permit applies to, but is not limited to, commercial guided wilderness tourism activities such as hiking, horseback riding, dog mushing, canoeing, kayaking, sport fishing, mountain biking, skiing, snowmobiling, wildlife viewing, and photography, including aircraft landings within park boundaries.
If you want to step off the roadway and truly explore the Yukon the way it should be... this permit needs to be applied for. But hey, if you want to go on a photo tour that just stays on the roads dodging transport trucks, you can always do that with another company... ;-)
2. Commercial Filming and Photography Park Permit - This permit applies to all commercial film productions or commercial photography shoots including filming/photography for motion pictures, documentaries, advertisements, or other commercial products (e.g., calendars, books, postcards, posting photos on social media that you directly generate money from etc)
If you are a hobbyist that just likes to take photos for yourself, this wouldn't apply... but i would hate that you came with me and took a once in a lifetime photo that someone wanted to buy from you... but then you couldn't sell it because you weren't covered under this permit and legally not allowed to make a penny form your photo. Or lets say you enter the photo into a competition, and you win a prize for the photo... legally, that can be argued that, that is making money from an image... I bet you would have wished your photo workshop leader had that permit to ensure you were covered then... ;-)