Shibuya is where Tokyo agrees to be young in public. Two point eight kilometres, mostly downhill once you've climbed Center Gai, covering the four things that matter: Hachiko for the meeting, the Scramble Crossing for the spectacle, the alleys for the antidote, and Shibuya Sky for the verdict from above.
Start at Hachiko — the loyal-dog statue everyone uses as a landmark, then straight into the Scramble Crossing. There's no trick to it; wait for the green, and a thousand people walk through each other without touching. It is genuinely crowded, always, and best at dusk when the screens come on.
Up Center Gai for the noise, then duck into Nonbei Yokocho, a yokocho (alley of tiny bars) against the tracks — six-seat counters, two minutes and a world away from the crossing. Down to Shibuya Stream along the daylighted Shibuya-gawa (river) for a quieter drink.
End above it all at Shibuya Sky, the open rooftop on the 47th floor. Book the sunset slot. The crossing you fought through is a toy from up here, and that's the joke of the whole walk.

