It looks like a “Kids Flea Market” will be held at Corowa Koshien on May 4 (Mon).
Quoted from Kids Flea Market Event! [Advance Reservation (Lottery) Required] | Event News | Corowa Koshien
Kids Flea Market
When is it happening?
May 4 (Mon)
First session: 11:00〜12:00
Second session: 14:30〜15:30
Where is it happening?
Corowa Koshien 1F Corowa Garden (outdoors)
Here it is on the floor map↓

What kind of event is it?
- A flea market where only kids run the shops and buy and sell items🛍️
- Kids can experience handling money and communicating with customers💰
- They’ll sell secondhand items like toys and books📚
- There’s an introductory lecture, so first-timers can feel at ease🎤
- Kids can also run a booth together with friends or siblings👫
What’s the schedule for the day?
First session
10:00〜10:40 Vendor check-in
10:40〜10:55 Opening lecture
11:00〜12:00 Kids Flea Market
12:00〜12:10 Closing lecture
〜12:30 Cleanup
Second session
13:30〜14:10 Vendor check-in
14:10〜14:25 Opening lecture
14:30〜15:30 Kids Flea Market
15:30〜15:40 Closing lecture
〜16:00 Cleanup
How much does it cost?
Admission: Free
Booth fee: 300 yen per booth
How many vendor booths are there?
20 booths per session (13 booths in case of rain)
Who can participate?
Vendors: 3rd to 6th grade elementary school students (up to 2 people per booth)
Shoppers: Elementary school students and younger only (guardians wait in the viewing area)
How to apply
- For those who want to run a booth
Advance reservation (lottery system) is required
→ Apply here
Application period: April 11 (Sat) 0:00〜April 21 (Tue) 23:59
Lottery results will be emailed to all applicants by 4/30 (Thu) 23:59. - For those who want to shop
Priority admission: Advance reservation required (first-come, first-served)
*Even if it becomes fully booked, cancellations may open up, so we recommend checking the website from time to time.
Applications open: April 30 (Thu) 0:00〜
General admission: Same-day participation OK
Event details are here
Finally
The key point is that kids are the stars of the event, and they’ll be “buying and selling by themselves.” It sounds like they’ll get an experience that’s a little more realistic than playing shopkeeper. Since there’s also a lecture, first-timers should feel comfortable joining in. It could be a nice GW outing with your kids.













