Thanks Razor.
Emmy_Bug - it's the Cologne Swim and Run on the weekend of 17th June - there's the 12km swim, a 1km swim/7km run, 2km swim/14km run, 4km swim/21km run, a kids triathlon, and the European sprint triathlon championship. Held at Fuehlinger See which you probably know well. Let me know if you enter something, will be nice to meet up there. We always overnight at the Ibis Hotel in Leverkusen, terrible location but cheap, plus it's close to the race venue.
Same place also for the Cologne Triathlon weekend in September, sprint, middle and long tri, plus a crazy 226+ race which is a combo of the sprint plus the long distance! I've done the middle distance and LJS did the sprint.