The Oedo Beer festival is a great value craft beer event that takes place in various places (usually) during each season. The summer edition this year takes place in Machida—about a 40-minute journey down the Odakyu Line from Shinjuku.
Entry to the event is free and you can try over 200 varieties of craft beer from as little as ¥300 per glass—making this one of the best value craft beer festivals in Tokyo.
The venue is a spacious, grassy park, so take some sunblock if you want to avoid the burn.
Note: The event is closed on Tuesday, July 16, 2019.