I haven't been to Universal for a few years, but we went on our Honeymoon and used at least one or two nights to check out the other hotels. I don't think we made it to the Hard Rock, but both Portofino and Royal Pacific have beautiful scenery and a number of places to relax, grab a snack, etc. If you're family is so inclined, Cabana Bay has, among other amenities, a bowling alley. Between those things, mini-golf, and the various pools, you should probably find your evenings rich but relaxing.