He's debating whether he'd dive right into the usual Tokyo hot-spots for that visit, or if he'd rather go with somewhere less... high impact. (He'll be travelling with his 6-year-old son.) He doesn't have anything really in particular he *needs* to see or do... he tends to like to just walk around and soak up the atmosphere, from what I saw on the one trip we took together.

Any suggestions on ideal vacation spots if one can only come in for a couple days?