With its cobbled paving, period-style buildings, and the lights of the Cosmo Clock 21 ferris wheel in the distance, the plaza of Yokohama Red Brick Warehouse is always a good setting for a Christmas market. It also boasts a 10-meter decorated Christmas tree. The market runs from 11am to 10pm each day and there are about 15 stalls in total with drinking/eating spaces.
There is also an “Art Rink” ice skating rink running from 2 December to 18 February. Entrance is ¥500 for adults + ¥500 for boot hire (if you don’t bring your own). Lockers are also available for ¥100-300. See the official website for more details.