Fanny packs are also makeing something of a comeback. They were very much in fashion 10 years ago, and never really left but lately I have seen them around much more. A local Old Navy has some on sale (clearance) for $3.99 in black. While not designed as a gun bag, they offer lots of room for items that would be inconvenient to carry in pockets.
I must agree with the comments that fanny packs would not look unusual in a park setting, or at a tourist type attraction.