Here's my suggestion....enjoy your time away from the gym and have fun with your family. You can't focus on your training and diet 365 days a year. Have fun, splurge a little, but don't go overboard. As long as your not getting ready for a competition its not that big of a deal.

If you've been going hard since January your body could probably use a rest anyhow and it will really help to clear your mind. I personally take a lot of week long excursions during the summer and just make sure I hit my training super hard when I am in town. Overall the time away won't hurt your gains that much as long as you do damage control, hell it might even help.