The “Chateau Mercian Festival 2026 — Making Japan One of the World’s Great Wine Regions” will be held at Shibuya Cast Space & Garden on Friday, May 15 and Saturday, May 16.
The festival launched in 2025 and is now in its second year.
Here are the details.
About the Event
The “Chateau Mercian Festival 2026 — Making Japan One of the World’s Great Wine Regions” is designed to further raise awareness of Japanese wine by giving people who do not usually drink it a chance to experience its flavor and enjoyment.
On the event days, all three Chateau Mercian wineries — Chateau Mercian Katsunuma Winery, Chateau Mercian Kikyogahara Winery and Chateau Mercian Mariko Winery — will participate in the festival.
About the Program
This year marks the 50th anniversary of Chateau Mercian’s major 1976 shift in grape-growing policy in the Kikyogahara district, when vineyards were replanted to Merlot.
To commemorate the milestone, the festival will focus on Nagano Prefecture and hold a paid seminar in which winemakers discuss both the challenges they have taken on so far and those they see ahead.
A wide range of content is planned, including talk events featuring the three Chateau Mercian wineries, introductions to wines recommended by winemakers, and free seminars led by younger winemakers.
If you are interested, be sure to check the reference information below.
Reference
Festival Overview
Dates and times: Friday, May 15, 16:00–20:00 / Saturday, May 16, 11:00–19:00
Venue: Shibuya Cast Space & Garden (1-23-21 Shibuya, Shibuya-ku, Tokyo)
Admission: No reservation required; admission free. Some content requires advance reservations and a fee.
To purchase wine by the glass and similar items, wine tickets*3 must be purchased.
For seminar details, speakers, tasting items and prices, see the special “Chateau Mercian Festival 2026” page on “Chateau Mercian online,” the Mercian Group’s official online wine shop.

