To import this calendar onto iPhone or Android, click this link:

https://calendar.google.com/calendar/ical/mep6mufk21sq40ov4dtpv2d3no%40group.calendar.google.com/public/basic.ics

For reference, mini Calendar ID: 

mep6mufk21sq40ov4dtpv2d3no@group.calendar.google.com 

Calendar url: 
https://calendar.google.com/calendar/embed?src=mep6mufk21sq40ov4dtpv2d3no%40group.calendar.google.com