I really want to do this 5k race at a nudist resort. It sound so fun, what do you all think? http://olivedellranch.com/bburro.htm Not sure how to approach the subject with my wife.
I recently did one. They are fun, regardless if you are a strong runner or not. Since it is 2 months away, it also gives you time to prep for it a little better. If you and your wife haven't shared any nudist tendencies, it may be a tough subject to approach. However, just being honest may do the trick. If she feels it is not because you want to see naked girls all over the place, she may be more open to it.
Women often need a sport bra to stop them thar things bouncing around like untethered yard dogs. The guys can put up with whiplash. I like running in the nude but it is more comfortable in a thong. To prepare, go nude in the backyard and run laps around it; this will give you a feel for how...er...things behave and if you need to make 'em more comfy. Running nude in sanctioned events should not turn you off: it's liberating, fun, funny and you'll likely come away from the experience enriched for it.