BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20130112T130000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20140523;BYDAY=SA,SU
SUMMARY:Novice Nature Ski Hike
END:VEVENT
END:VCALENDAR