On most weekends in Shinagawa, a working horseracing venue transforms into something else entirely. Ohi Keibajo (大井競馬場) — also known as the Tokyo City Flea Market — takes over the racecourse grounds with around 600 stalls, making it the largest regularly scheduled flea market in Tokyo. Organised by the Tokyo Citizens Recycling Society, it runs almost every Saturday and Sunday, giving it a rhythm and scale that no shrine or temple market in the city can match.

The format here is closer to a British car boot sale than a traditional Japanese antiques fair. Visitors expecting lacquerware, vintage kimono or Meiji-era ceramics will need to look elsewhere. What Ohi Keibajo offers instead is a frank, unpretentious slice of Japanese everyday life — the kind of material culture that fills apartments, garages and recycling boxes across the city.

Merchandise spans three broad worlds. The first is the household and practical: cookware, kitchenware, worn bric-a-brac, old tools showing honest rust, and the kind of small domestic objects that accumulate over decades. The second is media and pop culture — shelves of paperbacks, stacks of DVDs, video games across multiple generations, anime figures and manga volumes. The third covers wearables and accessories: second-hand clothes, bags, watches, and assorted knick-knacks at prices that start as low as ¥100 for many items.

That entry price point matters in Tokyo, a city not known for its generosity to budget shoppers. For first-time visitors curious about everyday Japanese consumer culture — the domestic, informal version rather than the curated department-store version — Ohi Keibajo is genuinely revealing. The market feels like a live documentary of what people actually own, use and eventually let go. Pop-culture browsers, thrift hunters and anyone who appreciates the randomness of a well-stocked car boot sale will find it rewarding.

The racecourse setting gives the market an open, unhurried quality. Stalls spread across real space rather than pressing in on narrow temple paths. Hours shift with the seasons: from October to March the market runs roughly 08:30 to 14:30, while April through September it opens around 09:00 and closes at 15:00. Arriving in the morning gives you the best spread before the crowd thins the best finds.

Getting to the market is straightforward from several directions. The bus stop 大井競馬場, served by bus lines 井20, 品93乙 and 品93甲, sits approximately 150 metres from the grounds and is the most convenient local option for many visitors. Oikeibajo-Mae train station is approximately 400 metres away and serves as the primary rail access point. Tachiaigawa station — on subway line Al and train line KK — provides a useful alternative at around 700 metres. The market address is 2-1-2 Katsushima, Shinagawa-ku, Tokyo.

Ohi Keibajo suits visitors who want to see Tokyo from the inside out. It is not a showcase market. It is the real thing — sprawling, affordable, occasionally strange, and entirely its own.