This Sunday 17th, St. Patrick's Day celebrations will be taking place nationwide. Many events have been planned, included the Tokyo Saint Patrick's Day Parade. Of particular note is the Fujinishiki Sake Festival in Fujinomiya which I wrote about last year and falls on the same day as St. Patrick's Day. While not necessarily an official St. Patrick's Day celebration per se, drinking free locally-made sake from morning 'til night seems a good a way as any to spend this holiday. From as early as 9am, you can enjoy unlimited free sake samples and spectacular views of Mt. Fuji. The event is outdoors so bring a picnic blanket (and rubber boots if it is going to rain). To get there, get off at Fujinomiya station and take the free shuttle bus which leaves every 10 minutes (30 mins).
In addition, the Mercedes-Benz Fashion Week Tokyo kicks off this weekend across Tokyo. While most events are invite only, there are some free and open to the public events which you can check out at this link. Click the image below for more details.