Keio Plaza Hotel Tokyo

Five-minute walk from Shinjuku Station, the 1,438-room, 36-hall giant hosts entire conventions under one roof. In-house cultural desk arranges tea ceremony, flower arranging and yukata dressing in English and Japanese.

Sip matcha in an authentic tea hut carved into the basement, then gaze at neon skylines from the 160 m club lounge. Vegan, halal and kosher kitchens support diverse groups, making the hotel a favourite for multi-national gatherings balancing big-city buzz with hands-on “wa” experiences.