From Kálvin tér to Gólyavár

When you come up from the subway you turn left towards the exit

marked with sign:

Then you come up on Múzeum krt.

You pass the National Musem, then Múzeum Café Restaurant, then a building of Eötvös University.

Next to the building is a gate where cars can enter the courtyard. You enter there

or at the pedestrians' gate:

You go straight ahead

until you find Gólyavár behind that big building on your right.