I went on a 40km bike ride around Amsterdam with Mike's Bike Tours. It was a lovely ride, we saw a windmill, countryside, went to a cheese factory (and sampled cheese) and then to a clog factory. My guide was even wearing a pair of them cycling - apparently they are actually comfortable, though I wasn't game enough to try a pair on.
I was doing OK with the cycling until we got back into Amsterdam, then it was pretty scary! If you'll remember back a few posts ago, I'd only recently learned to ride again after many years of not doing it. So the countryside was fine, but the city was different - everyone so confident and just whizzing through, while I kept trying to get out of their way! But I survived! And celebrated with lunch and a glass of wine.