St. Patrick’s Day in Tokyo is celebrated every year in two parts. The first part is an Irish cultural festival at Yoyogi Park—the official site outlines the day as including: traditional musical and dance performances, Irish sports (hurling, perhaps?), and an Irish gourmet booth where you can try Irish stout, stew and steamed oysters. The event will be entirely cashless – with plenty of support in setting up a card of your choice (nothing crazy – just use a suica/pasmo etc), including a machine to convert foreign currency to electronic yen.
The second part, the annual St.Patrick’s Day Parade, takes place Sunday along Omotesando Street and starts at 1 pm.
Usually the parade comes down the hill from Omotesando towards Meijijingu-mae Station on the Gyre/Dior Building side of the road and then does a U-turn at the Omotesando/Meiji Dori intersection before heading back up the Omotesando Hills side of the same street.