Slotwin I used to live in Den Haag so yes I understand the travel issue and the endless flatness of the Randstad. I guess the dunes of Monster to Wassenaar are really only going to be good for MTB or maybe a hybrid, not sure what the trail is like there these days.
I used to live in Holland & I can assure you the area around Maastricht isn't flat, where do you live Slotwin, is Limburg within reach by public transport? You only really need to do your long Saturday rides in the hills, your runs can be in the dunes or on the beach if you are by the coast like it sounds you might be.
36 minute swim, I should have stuck with the courage of my convictions and started toward the front of the pack but got caught in the biff for the first 4-5 hundred metres.
3:10 bike, some cheeky hills and a Col at 70km
1:48 Run, hot, very hot.
My first overseas triathlon and first Ironman branded half distance race, have to say, some things left a lot to be desired, IM Wales is just so slick, this I'm afraid just wasn't. Biggest complaint is athlete safety, from mile 25 - 30 the roads were live with 2 way traffic, no warnings no signs, nothing, motorists overtaking riders, chancing it and pushing into the groups of riders at the last minute, it looked like 1 person was knocked off.
On the run an athlete was down on the deck, I'd guess with heat exhaustion, he was being tended to by the public and a few of us clearly signalled a marshal an athlete was in distress, a full 30 minutes later still no emergency aid, 30 minutes later he's on an IV. This wasn't in some remote mountain pass, it was in a park in Aix probably 1.5 - 2 km from the finish line.
There were other little niggles as well, I won't go into details here, I'm going to drop an email to IM Europe tomorrow.
edit just to say, a fantastic place to race, lake was 19c and clear, roads were a little sketchy in places but that's what this part of France is like and the run course is by no means flat!