Santarchy Tokyo is always the last Saturday before Christmas. Santas meet at the Hachikō statue in Shibuya Station at noon.
This year's Santarchy Tokyo will be on Saturday, December 22 at 12:00 Noon.
Rough itinerary for late arrivals:
Saturday 12/22 noon: Shibuya HACHIKOU Dog → Yoyogi Park → Harajuku → Omote-Sandou → "Aoyama-itchome" Station.
From "Aoyama-itchome st." to "Akababashi st." via "Oedo Metro Line" (170¥, 6minutes.).
Akabahashi → TOKYO TOWER
TOKYO TOWER → Daimon station.
From "Daimon st." to "Asakusa st." via "Asakusa Metro line" (210¥, 15 minutes.)
Asakusa -> Fin!
Japanese readers can find more information at magarisugi.net/santa or Mixi.