I just bought a discontinued model of an Eaglecreek fanny pack (cheap) which is about ll inches across and about 4-5 inches wide when packed. Has many pockets and can actually hold a cold lunch (insulated in part),water, phone and all my other necessaries for a day at the park. Anyone every carry around such a thing? (Good thing is that it's hands-free) Should I just stash snacks and lunch in a locker in a backpack? I thought it would be alot of trouble to trek back to a locker but you guys are the experts. Please give me your thoughts. (six weeks to go!) 
