BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//AV De Koplopers//Koplopers Plugin//NL
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:kl-event-188@dekoplopers.nl
DTSTAMP:20260610T204840Z
DTSTART;VALUE=DATE:20260412
DTEND;VALUE=DATE:20260413
SUMMARY:Rotterdam Marathon
URL:https://www.nnmarathonrotterdam.nl/
END:VEVENT
END:VCALENDAR