BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
BEGIN:VEVENT
URL:/calendar/?id=10902
DTSTART:20170812T100000Z
DTEND:20170812T120000Z
SUMMARY:Walking the Battle of Lewisham
LOCATION:New Cross and Lewisham
END:VEVENT
END:VCALENDAR