Going with public transportation (train, bus, tram)
Nearest stops:
Bus:
Plac Zamkowy (Castle Square) - 116, 178, 180, 503, 518
Stare Miasto (The Old Town) - 160, 190, 527
Tramway:
Stare Miasto (The Old Town) - 4, 13, 20, 26
Underground (change necessary):
M1 - Ratusz-Arsenał
M2 - Nowy Świat-Uniwersytet, Dworzec Wileński
More information:
ZTM - Public Transport Authority of the capital city of Warsaw - website
Veturilo (Warsaw Public Bike):
Bulwar Most Śląsko-Dąbrowski 52.24788445501, 21.019468903542
Krakowskie Przedmieście-Trębacka 52.2435965, 21.0140803
Mariensztat 52.2465625, 21.0174345