We did this in 2005 when the Magic went out to LA then.........if it is the same one.....Canopy Tours, I think........shorts are great......BUT......wear clothes that you DO NOT MIND GETTING RUINED!
The "Mexican motorcycles", as our guide called them, give off a fine "spray" of oily gunk. Our faces were covered in brown gunk....and our shirts also had it all over them. That being said.................it was probably the BEST excursion we have ever taken!!!!!!!!!
Have fun and enjoy!