Your best bet is to not bring the wife along until you're pretty good at it, cos if you wind up among a whole lot of 8 foot tall plants and stalks and such and you're not faring well with finding the cache and it starts pouring and she just says screw it and runs through said greenery all the way to the Forester, it's not much fun and she probably won't talk to you for a while or want to go caching again anytime soon.
Er, I have no idea how I know this.
It is really neat, though.