Shawn’s comment is spot on. Lots of studies now positing the benefit of a body, mind, spirit modality. Here is one. http://www.psychologytoday.com/files/attachments/34033/ijsmarticle.pdf
Have fun will travel
I have held many classes (and private sessions) outdoors and it has always been well received. As Shawn said, you need to watch out for rain. For this very reason I don’t have an ongoing outdoor class but, when the weather is good, they ask me for it. Finding a location hasn’t been too challenging (I don’t know anything about Laredo, TX.) here in Chattanooga, TN. Parks and school yards are my typical haunts but, I’ve been known to utilize a parking lot or two on occasion. Locate those with authority to grant written permission for use, negotiate some terms (most of the time you gotta give something, hasn’t always been money so get creative) and notify your insurance of the new location. Adapt training for the given surface and bring extra water; even if you have instructed your participants to do so. Lastly, find the nearest restroom, no matter how far it is, it might be necessary.
Hey Hedei. The short answer to your question is “of course” it would be fine to offer outdoor group classes! There is a market for just about any type of training and training venue. As some of the other posters have already mentioned, finding the clients, finding a location and making sure that you have proper permits etc. to make this all work, is your real issue/concern.
I love training clients outdoors, and I have to say, they love it too! Good luck!