The Sunflower Festival in Kiyose City is one of Tokyo's great flower festivals. With over 100,000 flowers on display, it is a great event for a day out along with some great photos. If you are a flower lover, it is highly recommended!
To get there, go to Kiyose station, leave via the north exit and use the #61 number 2 bus that leaves from the second platform. Get off at the Greentown Kiyoto bus stop and it is about a six-minute walk to the farm.