I believe there are a few in Naples.
On the North end of town, Calusa Pines is separated from Golf Club of the Everglades by a strand of trees (Calusa Pines?). Golf Club of the Everglades is likewise contiguous with Olde Florida if a drainage channel doesn't trip up the "body of water" test.
Moving South on 41, I believe Hole in the Wall and Royal Poinciana are separated by only a similar drainage ditch. I believe both touch Wilderness Golf and that Royal Poinciana also touches Bears Paw.
Lots of golf in Naples, which ups the chances of having unrelated courses sharing a border.