Having the Royal Palace behind you, cross the Square and walk past the national monument to turn left onto Warmoesstraat. Walk along Warmoesstraat and then turn right onto Sint Annenstraat. After 110 meters, turn left onto Oudezijds Voorburgwal and you will see in a while the Oude Kerk. Turn left onto the street that runs along the Oude Kerk until you reach the front of the church facing its clock tower.