On your computer, please pick the calendar app you use and subscribe to SoCal using that app.
For Google Calendar online:
login to: https://calendar.google.com/calendar
lower left side panel, click "+" sign to the right of "Other Calendars"
in the drop-down menu, click "From URL"
paste the ICS URL into the "URL of Calendar" field:
https://calendar.google.com/calendar/ical/f83ba0e262046d94255e9dac243d6f2241123621d9f4eae6c0bc0669beb80395%40group.calendar.google.com/public/basic.ics
Click "Add calendar"
For Outlook online:
login here: https://outlook.office.com/calendar/
middle left side panel, click "Import Calendar."
on the popup, lower left corner, click "From Web."
paste the ICS URL into the link field:
https://calendar.google.com/calendar/ical/f83ba0e262046d94255e9dac243d6f2241123621d9f4eae6c0bc0669beb80395%40group.calendar.google.com/public/basic.ics
name the calendar SoCal.
Open Calendar App
File > New Calendar Subscription
Enter the URL into the "Calendar URL" field:
https://calendar.google.com/calendar/ical/f83ba0e262046d94255e9dac243d6f2241123621d9f4eae6c0bc0669beb80395%40group.calendar.google.com/public/basic.ics
Click Subscribe.
On the next panel, change "auto-refresh" for every 5 minutes. Keep rest at default.
Click OK.