If you don’t want to go to the Sanja Matsuri in Asakusa, or might feel you will get a Japanese Culture overdose after one day at Sensou-ji, set your course to Yoyogi Park, and experience Thai Culture!
Getting in is free, and the festival is on both Saturday and Sunday, 10 am – 8 pm. The theme of the festival is “Thai spices and herbs”, and you can eat delicious Thai food, and listen to Thai music with live bands on the stage.
More info about the festival can be found here (Japanese): http://www.thaifestival.jp/jp/