Hoshi no Yume Illumination is an event where the moat around Goryokaku is illuminated with nearly 2,000 lights to create a star-shaped illumination. Goryokaku is lit daily during the period.
(*Notes on the views from the observation deck.)
Due to sunset time, Goryokaku appears black from December 1 to early January while it appears blue from mid-January to February 29.
Please also note that Goryokaku looks different with or without snow depending on the weather conditions such as snow accumulation.
[2019-2020] Dates and time of illumination
5 p.m. to 8 p.m. on Sunday, December 1, 2019, to Sunday, February 9, 2020.
5:30 p.m. to 8 p.m. on Monday, February 10 to Saturday, February 29, 2020.