4. Bike to Ouderkerk aan de Amstel
This picturesque village, a mere 30-minute bike ride from the city center, has somehow managed to hold on to its identity and a surrounding swathe of open green space between two of the city's hungry, southern-reaching arms. Several classy restaurants make use of the charming setting -- including one of our favorites, Jaimie van Heije.
5. Bike through the tulip fields around Haarlem in April
This doesn't really need an explanation. Take your bike on the train to Haarlem and start there.
Even if you're not a soccer fan, do it once. The enthusiasm is contagious, and if you speak any Dutch, the taunts the fans throw at each other are... noteworthy (if not always in a good way).