One time we try this 3 wheel bike taxi to find Hard Rock Cafe, and back to Dam Square in rush time. The driver is a Dutch woman, she speak well English and she drive so well and fast..... on the road with so many people because it's a finish work hour and also many bicycle, but she drive so great, fast and convenient.
Amsterdam has its own traffic problems, so the motortaxi offers a fast alternative. Tarif: € 7,50 in the city center , €10,00 within the A10 highway ringA10, additional € 1,00 per km outside the A10.
There is a free ferry that you can take to the other side of the Het IJ from Amsterdam and take a hike along the Northern dike. Catch this ferry behind Centraal Station.