​To subscribe to the Drumline calendar, follow these steps:

1. On your computer, open Google Calendar.

2. On the left, next to "other calendars," click + -> From URL.

3. Enter the calendar's address: 
   https://calendar.google.com/calendar/ical/bo5rnsp2pvlnee7e4865nc8r24%40group.calendar.google.com/private-172409242be163c73c6b497d0a835235/basic.ics

4. Click add calendar. The calendar appears on the left, under "Other calendars."