De 9 Straatjes (nine little streets) are in the Canal Belt between the 4 main canals: Singel, Herengracht, Keizersgracht en Prinsengracht. And between Raadhuisstraat en Leidsegracht.

Walk to the area in just 2 minutes from behind The Palace on Dam square. Or 4 minutes from the Munt. Or on your way from Anne Frank to Rijksmuseum, close to Westertoren.

Most busses and trams to the center will get you to De 9 Straatjes. gvb.nl.
Take the stop at Dam square, Westertoren or Spui.

Would you rather get there by car? All 9 little Streets are too narrow, but metered parking is ‘possible’ at the canals around.
You also have a look at Parkeren Centrum Oosterdok

Looking for accommodations nearby? Have a look at De9Straatjes
or: https://www.hotelscombined.com/Place/De_9_Straatjes.htm

See you in De 9 Straatjes, the nine little streets!