Have you considered visiting any of your students who are away for the summer?
You might not be able to accomplish this for all your students, but a misplaced “fairness” shouldn’t keep you from visiting others. If there’s a city where several of them live (or are working this summer), all the better. Or maybe you’d try to visit as many of your student leaders as you could, or those about to be juniors, or some other segment.
Your staff could split this up, or even student leaders might get in on the act, visiting other students to grab lunch or whatever.
Yes, it takes time and a little budget. But it’s a powerful way to remind everyone that this college ministry is a family. And it will get you in touch with that “other world” of your students – you know, since y’all usually just hang out inside the campus bubble.