I Amsterdam Card
The "I Amsterdam Card" will give you advantages and reductions (free entry to more than 30 addresses and more than 20 special offers). You can choose a card valid for 24 hours (49 € - tariff 2015), 48 hours (59 € - tariff 2015) or 72 hours (69 € - tariff 2015).
Thanks to the "I Amsterdam Card", you can also take a
free boat ride on the Amsterdam canals and take the public transport (tramways,
bus and metro) as much as you like without paying the slightest extra
centime. Unfortunately, the journey from Schiphol airport to Amsterdam
Central Station by train isn't included.
You can find more information about the "I Amsterdam Card"on its official website.