The 13th Snow Light Path(I found the title of the festival in English has changed from Snow Gleaming Festival according to their official web site) began from yesterday.
When I took a glance at the Former Temiya Railway Line site around 8 o'clock, many people were enjoying the path lit by the candles.
If you are planning to come to the festival from Sapporo areas, Hokkaido Chuo Bus offers a value tour.
Please refer to the following web site for details.
You can find the information from 'Fun Things To Do In Otaru'.
http://www.chuo-bus.co.jp/sightseeing.en/
¥4,700(¥2,500 for children) for the 9-hour tour including Mt.Tengu Ropeway ride to see the magnificent night view of Otaru sounds reasonable, and the tour is also convenient for the visitors to enjoy the festival and some other sightseeing spots as well.