Claska Picnic Garden

It may still be too early for beer garden season, but boutique hotel Claska is taking advantage of the balmy spring weather this month by turning its rooftop into an al fresco picnic spot. The space will be decorated with LED lights, and the ¥3,000 charge (¥2,500 if you reserve by 3pm the day before) gets you three-and-a-half hours of free-flowing drinks, though you'll need to bring your own food with you.