chances are, yes, they will check your bags. usually though they check for drugs, weapons, and alcohol, most ive been to will let you take in cameras, just not video or sound recording equipment but im sure each is differant so you might want to park as close as you can incase you have to run back to your car to put it back. Im not sure what the weather is like there but around here water is the most important to bring. Usually they will let you bring in water bottles if they are not open...some places though will make you dump whatever is in the bottles out (especially if its already open). If they do make you dump the water out, try and get them to let you keep the bottle to fill up at a fountain once you get in (or end up paying 5 bucks a bottle!!) usually festivals have so much going on you wont get bored. you will however be doing alot of walking around so wear comfortable shoes. As far as the question on how far apart the stages are, that depends on the venue. Most stages arent too far apart (like ozzfest for example) but if its a super huge festival like the Coachella music festival where the stages are at separate ends of a airport runway (expect something like 1/2 mile between stages).
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