Halloween has come a long way from its origins in ancient Celtic harvest festivals. These days it's more about looking as OTT as possible (we think Joker and Pennywise the clown will be a hit this year), a custom that was popularised in the US in the early 1900s. In Japan, too, there is none of the doom and gloom of the holiday's historical association with death, which may have something to do with the fact that the local celebration first made waves at Tokyo Disneyland.
Even if you're not planning an all-nighter on Thursday October 31 2019, it's still worth heading down to Shibuya or Shinjuku just to witness the outlandish costumes on show. Nevetheless, a lot of the Halloween parties in town are already happening a week or two prior to the actual day. Just bear in mind that starting this year, public drinking is prohibited in Shibuya during the Halloween and New Year celebrations.
RECOMMENDED: More great things to do in Tokyo this autumn