- Winter Season · - Santa Cruz · - Foothill · - Vallejo Band Review · - Encinal Band Review · - Spring Concert Photos · Awards. . 4 Seasons Winter betsul From January 18th to February 10th,, Igloofest, the coldest music festival in the world, brings thousands of electronic music and. Where whimsical meets. . From January 18th to. From January 18th to February 10th,, Igloofest, the coldest music festival in the world, brings thousands of electronic music and winter.