Great weekend of playing and learning at the downtown oasis 

GTF Green Challenge Day 2020 in Shinjuku Gyoen



Let's have fun learning the "environment" out of many hands-on programs!

GTF Green Challenge Day 2020 in Shinjuku Gyoen 

[Green Challenge Day] is a day to support various challenges to raise awareness of biodiversity. We support any challenges by companies, local governments, or organizations and any actions by citizens to protect environment.
GTF Green Challenge Day in Shinjuku Gyoen is an event where the government, companies, organizations, and citizens unite together to creature a global culture of environment protection at Shinjuku Gyoen park located in the center of megalopolis.
The five programs of this event are planned in accordance with “MY Declaration” promoted by the Japan Committee for UNDB.
5 actions from "MY Declaration"  x  5 event programs
➊ ACT 1 Eat x Food
❷ ACT 2 Feel x Workshop
❸ ACT 3 Communicate × Stage
❹ ACT 4 Join x Stamp Collection
❺ ACT 5 Choose x ​​Marche / Shop
“MY Declaration” is designed to let every citizen to recognize the implications of biodiversity in their daily lives and start acting something easy but good for environment.


GTF Green Challenge Day 2020 in Shinjuku Gyoen


Sat. 03 Oct ~ Sun. 04 Oct




Shinjuku Gyoen

Landscape garden & Formal garden

The nearest station

5 min walk from Shinjuku Gyoen Sta.  (Tokyo Metro Marunouchi line)

5min walk from Shinjuku san-chome Sta. (Tokyo Metro Fukutoshin & Toei Shinjuku line)

10 min walk from Shinjuku Sta. (JR line)

Language support

English leaflet available at event info booth

English speaking staff available


☎ +81 3-3222-6264


GTF Greater Tokyo Festival committee

Photo Gallery










➊Washoku: Serving sustainable cuisines supervised by Chinese and Japanese superb chefs

We will introduce environment-friendly sustainable cuisines in terms of using domestic agricultural products, cooking without wasting food and energy, and using reusable tableware. In collaboration with Japan's leading chefs, we are planning to serve environmentally friendly special menus for two days only. This year’s menu will be announced as soon as it is decided.


❷Workshop: Learn more about the environment!

A variety of workshops and exhibition booths by governments, organizations and companies available. There are plenty of hands-on content that you can draw craft, challenge quizzes, or move. Let's learn more about the environment while having fun playing with friends and families around many booths!

※Workshops are held at booths of booth numbers starting with "W".


❸Stage: Bring the power of festival and hope for harmony between human and nature!

Bring Awa Odori, Eisa, Yosakoi and other festivals that have been handed down throughout Japan into the event. The passion for harmony between human and nature will be delivered to the Shinjuku Gyoen National Garden in a hot dance.

※Performers will be announced as soon as confirmed.


❹Stamp collection: Free hands-on program to learn about nature!

Collect stamps from designated booths in the venue and win prizes! No entry fee needed. Many people participate in the program every year and win prizes. Please join us!

【How to participate in the stamp collection】
➊ Get leaflets distributed in the venue or the event information booth
❷ Collect stamps on stamp sheet in the leaflet.
❸ After collecting stamps, come to the event information booth and answer the questionnaire. Then, you can participate in the lottery to win luxurious prizes!


❺Marche: Seasonal blessings of nature available for sale

Marche shops open for two days. Seasonal product and local specialities available for sale. oasting autumn flavors from various production areas in Japan. We have a lot of local, organic and fresh and delicious ingredients from vegetables and fruits and vegetables!

【Support Marche】
In the hope of the recovery of fragmented or degrated nature in the disaster-stricken area, fresh and seasonal products from the affected area will come on the market! Let's buy and eat their products to support farmers and companies from the affected area.


❻GTF Reiwa Grand Green Tea Ceremony

Enjoy drinking delicious green tea from leading tea producers in Japan while learning about their environmental conservation activities. No dress code. A wide variety of tea products is also available for sale. 


Festival Report

01 GTF Green Challenge Day 2019

GTF Green Challenge Day 2019 in Shinjuku Gyoen was held at Shinjuku Gyoen park on October 5 (Sat) and October 6 (Sun).
Although the number of visitors exceeded 20,000, and they enjoyed learning about biodiversity and environmental conservation through six event programs.    


and more

GTF Green Challenge Day 2020 in Shinjuku Gyoen

Sat. 02 Oct ~ Sun. 03 Oct

Shinjuku Gyoen (Landscape garden & Formal garden)

and more

Chichibu Yomatsuri

Mon. 02 Dec ~ Tue. 03 Dec

Around the Chichibu Shrine

and more

Setagaya Boro-ichi

Canceled in 2020

Setagaya streets and in the Kamimachi area, around Setagaya station and the Boro-ichi street

and more

Hanno Festival

Canceled in 2020

Around Hanno Station North Exit