The start and end dates of the season may vary depending on weather conditions.
Option 1:
December 3
December 17
December 31
January 14
January 28
February 11
February 25
March 10
March 24
April 7
April 21

Registration priority for group classes 1 out of 2 Sundays

Plus, get 25% off a daily ticket when the pass is not valid.