I always loved going to St. John's campus as a child. My folks used to pack a picnic and go to a couple picnic spots they had there. One was right near Lake Sagatagan and my dad would walk with us around the lake through the woods to the Stella Maris chapel. It was beautiful and peaceful there. The chapel seemed so isolated and mysterious to me. Here is a picture of it from across the lake.
http://2.bp.blogspot.com/-rQ-PTV3PwN0/UEQc9ibld1I/AAAAAAAAAIY/vLsrEyU4FkQ/s1600/chapel.jpg
The other picnic spot was a right turn off a road along a creek before you actually entered the campus. I think now there is some sort of ecumenical center back there. We would always stop and buy St. John's bread before we left the campus. It seemed like a warm, friendly place back then.
As I've mentioned on here before, there are many good people at St. John's and it is an excellent college, but I feel it has been tarnished by those monks and priests who molested young boys, and the abbots above them who helped hide them away there.
I never found the campus creepy though, even as an adult - with the exception of the crypt below the church - that's a bit creepy, it is very shadowy, smells of old incense, and has lots of tiny rooms with altars and relics of saints.
However, 16th Ave. in St. Joe, there is no way I'd want to wander around out there. I drove out there once a few years after the abduction, and even in a car it felt scary and unsafe to me. Like JBrown said, I'm sure it's just because we have been looking at this case for so long. The town of St. Joe itself doesn't bother me at all, we go there with friends each year for their big 4th of July festival.